2157471360 has 384 divisors, whose sum is σ = 8609664960. Its totient is φ = 492011520.

The previous prime is 2157471359. The next prime is 2157471389. The reversal of 2157471360 is 631747512.

It is a happy number.

2157471360 is a `hidden beast` number, since 2 + 157 + 471 + 36 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (384).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1076119 + ... + 1078121.

Almost surely, 2^2157471360 is an apocalyptic number.

2157471360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2157471360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4304832480).

2157471360 is an abundant number, since it is smaller than the sum of its proper divisors (6452193600).

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

2157471360 is a wasteful number, since it uses less digits than its factorization.

2157471360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2056 (or 2041 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 2157471360 is about 46448.5883531459. The cubic root of 2157471360 is about 1292.1561920778.

The spelling of 2157471360 in words is "two billion, one hundred fifty-seven million, four hundred seventy-one thousand, three hundred sixty".