3879040640 has 32 divisors (see below), whose sum is σ = 9273333060. Its totient is φ = 1551616000.

The previous prime is 3879040567. The next prime is 3879040651. The reversal of 3879040640 is 460409783.

3879040640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 3874813504 + 4227136 = 62248^2 + 2056^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3029861 + ... + 3031140.

Almost surely, 2^3879040640 is an apocalyptic number.

It is an amenable number.

3879040640 is an abundant number, since it is smaller than the sum of its proper divisors (5394292420).

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

3879040640 is an equidigital number, since it uses as much as digits as its factorization.

3879040640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6061020 (or 6061008 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 3879040640 is about 62281.9447352120. The cubic root of 3879040640 is about 1571.2360801290.

The spelling of 3879040640 in words is "three billion, eight hundred seventy-nine million, forty thousand, six hundred forty".