40502440 has 32 divisors (see below), whose sum is σ = 99416160. Its totient is φ = 14728000.

The previous prime is 40502437. The next prime is 40502467. The reversal of 40502440 is 4420504.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45586 + ... + 46465.

It is an arithmetic number, because the mean of its divisors is an integer number (3106755).

Almost surely, 2^40502440 is an apocalyptic number.

40502440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40502440 is an abundant number, since it is smaller than the sum of its proper divisors (58913720).

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

40502440 is a wasteful number, since it uses less digits than its factorization.

40502440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92073 (or 92069 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 40502440 is about 6364.1527322967. The cubic root of 40502440 is about 343.4211691775.

Adding to 40502440 its reverse (4420504), we get a palindrome (44922944).

The spelling of 40502440 in words is "forty million, five hundred two thousand, four hundred forty".