2157892080 has 80 divisors (see below), whose sum is σ = 6799174944. Its totient is φ = 566000640.

The previous prime is 2157892021. The next prime is 2157892097. The reversal of 2157892080 is 802987512.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59059 + ... + 88338.

Almost surely, 2^2157892080 is an apocalyptic number.

2157892080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2157892080 is an abundant number, since it is smaller than the sum of its proper divisors (4641282864).

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

2157892080 is a wasteful number, since it uses less digits than its factorization.

2157892080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147474 (or 147468 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 42.

The square root of 2157892080 is about 46453.1170105947. The cubic root of 2157892080 is about 1292.2401793834.

The spelling of 2157892080 in words is "two billion, one hundred fifty-seven million, eight hundred ninety-two thousand, eighty".