40272444 has 48 divisors (see below), whose sum is σ = 106139040. Its totient is φ = 13201920.

The previous prime is 40272443. The next prime is 40272487. The reversal of 40272444 is 44427204.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40272443) 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, 3532 + ... + 9644.

It is an arithmetic number, because the mean of its divisors is an integer number (2211230).

Almost surely, 2^40272444 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40272444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53069520).

40272444 is an abundant number, since it is smaller than the sum of its proper divisors (65866596).

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

40272444 is a wasteful number, since it uses less digits than its factorization.

40272444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6187 (or 6179 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 27.

The square root of 40272444 is about 6346.0573587071. The cubic root of 40272444 is about 342.7698876173.

Adding to 40272444 its reverse (44427204), we get a palindrome (84699648).

It can be divided in two parts, 40 and 272444, that added together give a square (272484 = 522²).

The spelling of 40272444 in words is "forty million, two hundred seventy-two thousand, four hundred forty-four".