3556857372 has 12 divisors (see below), whose sum is σ = 8299333896. Its totient is φ = 1185619120.

The previous prime is 3556857319. The next prime is 3556857383. The reversal of 3556857372 is 2737586553.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

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, 148202379 + ... + 148202402.

It is an arithmetic number, because the mean of its divisors is an integer number (691611158).

Almost surely, 2^3556857372 is an apocalyptic number.

It is an amenable number.

3556857372 is an abundant number, since it is smaller than the sum of its proper divisors (4742476524).

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

3556857372 is a wasteful number, since it uses less digits than its factorization.

3556857372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296404788 (or 296404786 counting only the distinct ones).

The product of its digits is 5292000, while the sum is 51.

The square root of 3556857372 is about 59639.3944637267. The cubic root of 3556857372 is about 1526.4719099864.

The spelling of 3556857372 in words is "three billion, five hundred fifty-six million, eight hundred fifty-seven thousand, three hundred seventy-two".