3215155340 has 24 divisors (see below), whose sum is σ = 6766428480. Its totient is φ = 1283280768.

The previous prime is 3215155337. The next prime is 3215155397. The reversal of 3215155340 is 435515123.

3215155340 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 7 ways as a sum of consecutive naturals, for example, 164345 + ... + 182864.

It is an arithmetic number, because the mean of its divisors is an integer number (281934520).

Almost surely, 2^3215155340 is an apocalyptic number.

It is an amenable number.

3215155340 is an abundant number, since it is smaller than the sum of its proper divisors (3551273140).

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

3215155340 is a wasteful number, since it uses less digits than its factorization.

3215155340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347681 (or 347679 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 3215155340 is about 56702.3398106286. The cubic root of 3215155340 is about 1475.9353010812.

The spelling of 3215155340 in words is "three billion, two hundred fifteen million, one hundred fifty-five thousand, three hundred forty".