3640042580 has 24 divisors (see below), whose sum is σ = 7645223040. Its totient is φ = 1455801120.

The previous prime is 3640042547. The next prime is 3640042621. The reversal of 3640042580 is 852400463.

3640042580 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 polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 256265 + ... + 270095.

It is an arithmetic number, because the mean of its divisors is an integer number (318550960).

Almost surely, 2^3640042580 is an apocalyptic number.

It is an amenable number.

3640042580 is an abundant number, since it is smaller than the sum of its proper divisors (4005180460).

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

3640042580 is a wasteful number, since it uses less digits than its factorization.

3640042580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26999 (or 26997 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 3640042580 is about 60332.7653932753. The cubic root of 3640042580 is about 1538.2803343158.

The spelling of 3640042580 in words is "three billion, six hundred forty million, forty-two thousand, five hundred eighty".