40393976 has 16 divisors (see below), whose sum is σ = 86558640. Its totient is φ = 17311680.

The previous prime is 40393967. The next prime is 40393987. The reversal of 40393976 is 67939304.

40393976 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 360605 + ... + 360716.

It is an arithmetic number, because the mean of its divisors is an integer number (5409915).

Almost surely, 2^40393976 is an apocalyptic number.

It is an amenable number.

40393976 is an abundant number, since it is smaller than the sum of its proper divisors (46164664).

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

40393976 is a wasteful number, since it uses less digits than its factorization.

40393976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 721334 (or 721330 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 41.

The square root of 40393976 is about 6355.6255396302. The cubic root of 40393976 is about 343.1143388271.

The spelling of 40393976 in words is "forty million, three hundred ninety-three thousand, nine hundred seventy-six".