3947740288 has 32 divisors (see below), whose sum is σ = 7959414960. Its totient is φ = 1950083328.

The previous prime is 3947740253. The next prime is 3947740319. The reversal of 3947740288 is 8820477493.

3947740288 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 175170 + ... + 196417.

Almost surely, 2^3947740288 is an apocalyptic number.

It is an amenable number.

3947740288 is an abundant number, since it is smaller than the sum of its proper divisors (4011674672).

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

3947740288 is an equidigital number, since it uses as much as digits as its factorization.

3947740288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371684 (or 371672 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 52.

The square root of 3947740288 is about 62831.0455746202. The cubic root of 3947740288 is about 1580.4576316858.

The spelling of 3947740288 in words is "three billion, nine hundred forty-seven million, seven hundred forty thousand, two hundred eighty-eight".