40304550 has 96 divisors (see below), whose sum is σ = 117492480. Its totient is φ = 9014400.

The previous prime is 40304549. The next prime is 40304597. The reversal of 40304550 is 5540304.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 20511 + ... + 22389.

It is an arithmetic number, because the mean of its divisors is an integer number (1223880).

Almost surely, 2^40304550 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40304550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58746240).

40304550 is an abundant number, since it is smaller than the sum of its proper divisors (77187930).

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

40304550 is a wasteful number, since it uses less digits than its factorization.

40304550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1918 (or 1913 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 40304550 is about 6348.5864568422. The cubic root of 40304550 is about 342.8609510986.

Adding to 40304550 its reverse (5540304), we get a palindrome (45844854).

It can be divided in two parts, 40 and 304550, that added together give a triangular number (304590 = T₇₈₀).

The spelling of 40304550 in words is "forty million, three hundred four thousand, five hundred fifty".