40304542636 has 24 divisors (see below), whose sum is σ = 71462726720. Its totient is φ = 19886884992.

The previous prime is 40304542613. The next prime is 40304542711. The reversal of 40304542636 is 63624540304.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 40304542595 and 40304542604.

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, 597790 + ... + 661786.

Almost surely, 2^40304542636 is an apocalyptic number.

It is an amenable number.

40304542636 is a deficient number, since it is larger than the sum of its proper divisors (31158184084).

40304542636 is a wasteful number, since it uses less digits than its factorization.

40304542636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66073 (or 66071 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 37.

The spelling of 40304542636 in words is "forty billion, three hundred four million, five hundred forty-two thousand, six hundred thirty-six".