2151923360 has 24 divisors (see below), whose sum is σ = 5083919316. Its totient is φ = 860769280.

The previous prime is 2151923351. The next prime is 2151923377. The reversal of 2151923360 is 633291512.

It can be written as a sum of positive squares in 2 ways, for example, as 2092879504 + 59043856 = 45748^2 + 7684^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

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, 6724601 + ... + 6724920.

Almost surely, 2^2151923360 is an apocalyptic number.

2151923360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2151923360 is an abundant number, since it is smaller than the sum of its proper divisors (2931995956).

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

2151923360 is a wasteful number, since it uses less digits than its factorization.

2151923360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13449536 (or 13449528 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 2151923360 is about 46388.8279653625. The cubic root of 2151923360 is about 1291.0476356326.

The spelling of 2151923360 in words is "two billion, one hundred fifty-one million, nine hundred twenty-three thousand, three hundred sixty".