40409335392 has 48 divisors (see below), whose sum is σ = 106529819760. Its totient is φ = 13411960832.

The previous prime is 40409335367. The next prime is 40409335433. The reversal of 40409335392 is 29353390404.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 880917 + ... + 925652.

It is an arithmetic number, because the mean of its divisors is an integer number (2219371245).

Almost surely, 2^40409335392 is an apocalyptic number.

It is an amenable number.

40409335392 is an abundant number, since it is smaller than the sum of its proper divisors (66120484368).

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

40409335392 is a wasteful number, since it uses less digits than its factorization.

40409335392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1806815 (or 1806807 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 42.

The spelling of 40409335392 in words is "forty billion, four hundred nine million, three hundred thirty-five thousand, three hundred ninety-two".