40502438 has 32 divisors (see below), whose sum is σ = 64627200. Its totient is φ = 19017504.

The previous prime is 40502437. The next prime is 40502467. The reversal of 40502438 is 83420504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40502437) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 371528 + ... + 371636.

It is an arithmetic number, because the mean of its divisors is an integer number (2019600).

Almost surely, 2^40502438 is an apocalyptic number.

40502438 is a deficient number, since it is larger than the sum of its proper divisors (24124762).

40502438 is a wasteful number, since it uses less digits than its factorization.

40502438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 40502438 is about 6364.1525751666. The cubic root of 40502438 is about 343.4211635248.

The spelling of 40502438 in words is "forty million, five hundred two thousand, four hundred thirty-eight".