2157305370 has 48 divisors (see below), whose sum is σ = 5691016800. Its totient is φ = 522982240.

The previous prime is 2157305363. The next prime is 2157305383. The reversal of 2157305370 is 735037512.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 293520 + ... + 300779.

It is an arithmetic number, because the mean of its divisors is an integer number (118562850).

Almost surely, 2^2157305370 is an apocalyptic number.

2157305370 is an abundant number, since it is smaller than the sum of its proper divisors (3533711430).

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

2157305370 is a wasteful number, since it uses less digits than its factorization.

2157305370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 594331 (or 594320 counting only the distinct ones).

The product of its (nonzero) digits is 22050, while the sum is 33.

The square root of 2157305370 is about 46446.8015045170. The cubic root of 2157305370 is about 1292.1230528959.

The spelling of 2157305370 in words is "two billion, one hundred fifty-seven million, three hundred five thousand, three hundred seventy".