40000432 has 10 divisors (see below), whose sum is σ = 77500868. Its totient is φ = 20000208.

The previous prime is 40000421. The next prime is 40000451. The reversal of 40000432 is 23400004.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1249998 + ... + 1250029.

Almost surely, 2^40000432 is an apocalyptic number.

It is an amenable number.

40000432 is a deficient number, since it is larger than the sum of its proper divisors (37500436).

40000432 is a wasteful number, since it uses less digits than its factorization.

40000432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2500035 (or 2500029 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 13.

The square root of 40000432 is about 6324.5894728433. The cubic root of 40000432 is about 341.9964205136.

Adding to 40000432 its reverse (23400004), we get a palindrome (63400436).

The spelling of 40000432 in words is "forty million, four hundred thirty-two", and thus it is an aban number.