40392479904 has 48 divisors (see below), whose sum is σ = 121177441728. Its totient is φ = 11540708352.

The previous prime is 40392479903. The next prime is 40392479947. The reversal of 40392479904 is 40997429304.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (40392479903) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30053257 + ... + 30054600.

It is an arithmetic number, because the mean of its divisors is an integer number (2524530036).

Almost surely, 2^40392479904 is an apocalyptic number.

It is an amenable number.

40392479904 is an abundant number, since it is smaller than the sum of its proper divisors (80784961824).

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

40392479904 is a wasteful number, since it uses less digits than its factorization.

40392479904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60107877 (or 60107869 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 51.

The spelling of 40392479904 in words is "forty billion, three hundred ninety-two million, four hundred seventy-nine thousand, nine hundred four".