40390832 has 20 divisors (see below), whose sum is σ = 79020240. Its totient is φ = 19998528.

The previous prime is 40390807. The next prime is 40390841. The reversal of 40390832 is 23809304.

It is a junction number, because it is equal to n+sod(n) for n = 40390795 and 40390804.

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, 10607 + ... + 13902.

It is an arithmetic number, because the mean of its divisors is an integer number (3951012).

Almost surely, 2^40390832 is an apocalyptic number.

It is an amenable number.

40390832 is a deficient number, since it is larger than the sum of its proper divisors (38629408).

40390832 is a wasteful number, since it uses less digits than its factorization.

40390832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24620 (or 24614 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 40390832 is about 6355.3781948834. The cubic root of 40390832 is about 343.1054366790.

The spelling of 40390832 in words is "forty million, three hundred ninety thousand, eight hundred thirty-two".