40554240 has 144 divisors (see below), whose sum is σ = 132451200. Its totient is φ = 10571776.

The previous prime is 40554233. The next prime is 40554247. The reversal of 40554240 is 4245504.

It is an interprime number because it is at equal distance from previous prime (40554233) and next prime (40554247).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 40554240.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40554247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 226471 + ... + 226649.

It is an arithmetic number, because the mean of its divisors is an integer number (919800).

Almost surely, 2^40554240 is an apocalyptic number.

40554240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40554240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66225600).

40554240 is an abundant number, since it is smaller than the sum of its proper divisors (91896960).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40554240 is a wasteful number, since it uses less digits than its factorization.

40554240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262 (or 248 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 24.

The square root of 40554240 is about 6368.2211016892. The cubic root of 40554240 is about 343.5675112925.

Adding to 40554240 its reverse (4245504), we get a palindrome (44799744).

It can be divided in two parts, 405 and 54240, that added together give a palindrome (54645).

The spelling of 40554240 in words is "forty million, five hundred fifty-four thousand, two hundred forty".