40038402 has 16 divisors (see below), whose sum is σ = 80481600. Its totient is φ = 13278672.

The previous prime is 40038379. The next prime is 40038413. The reversal of 40038402 is 20483004.

It is a happy number.

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, 15573 + ... + 17960.

It is an arithmetic number, because the mean of its divisors is an integer number (5030100).

Almost surely, 2^40038402 is an apocalyptic number.

40038402 is an abundant number, since it is smaller than the sum of its proper divisors (40443198).

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

40038402 is a wasteful number, since it uses less digits than its factorization.

40038402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33737.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 40038402 is about 6327.5905366893. The cubic root of 40038402 is about 342.1045984906.

The spelling of 40038402 in words is "forty million, thirty-eight thousand, four hundred two".