4056640632 has 96 divisors (see below), whose sum is σ = 12309551280. Its totient is φ = 1196052480.

The previous prime is 4056640613. The next prime is 4056640661. The reversal of 4056640632 is 2360466504.

4056640632 is a `hidden beast` number, since 4 + 0 + 5 + 6 + 640 + 6 + 3 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39913 + ... + 98520.

Almost surely, 2^4056640632 is an apocalyptic number.

It is an amenable number.

4056640632 is an abundant number, since it is smaller than the sum of its proper divisors (8252910648).

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

4056640632 is a wasteful number, since it uses less digits than its factorization.

4056640632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138493 (or 138486 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 36.

The square root of 4056640632 is about 63691.7626699089. The cubic root of 4056640632 is about 1594.8585786045.

The spelling of 4056640632 in words is "four billion, fifty-six million, six hundred forty thousand, six hundred thirty-two".