3640480780 has 48 divisors (see below), whose sum is σ = 7914957120. Its totient is φ = 1404854528.

The previous prime is 3640480771. The next prime is 3640480817. The reversal of 3640480780 is 870840463.

3640480780 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1365729 + ... + 1368391.

It is an arithmetic number, because the mean of its divisors is an integer number (164894940).

Almost surely, 2^3640480780 is an apocalyptic number.

It is an amenable number.

3640480780 is an abundant number, since it is smaller than the sum of its proper divisors (4274476340).

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

3640480780 is a wasteful number, since it uses less digits than its factorization.

3640480780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5058 (or 5056 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 40.

The square root of 3640480780 is about 60336.3968098858. The cubic root of 3640480780 is about 1538.3420595457.

The spelling of 3640480780 in words is "three billion, six hundred forty million, four hundred eighty thousand, seven hundred eighty".