40431038 has 8 divisors (see below), whose sum is σ = 60764088. Its totient is φ = 20176344.

The previous prime is 40431023. The next prime is 40431059. The reversal of 40431038 is 83013404.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18281 + ... + 20372.

It is an arithmetic number, because the mean of its divisors is an integer number (7595511).

Almost surely, 2^40431038 is an apocalyptic number.

40431038 is a deficient number, since it is larger than the sum of its proper divisors (20333050).

40431038 is a wasteful number, since it uses less digits than its factorization.

40431038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39178.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 40431038 is about 6358.5405558194. The cubic root of 40431038 is about 343.2192440438.

The spelling of 40431038 in words is "forty million, four hundred thirty-one thousand, thirty-eight".