2157330880 has 224 divisors, whose sum is σ = 5601248640. Its totient is φ = 789626880.

The previous prime is 2157330869. The next prime is 2157330881. The reversal of 2157330880 is 880337512.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2157330881) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20944909 + ... + 20945011.

Almost surely, 2^2157330880 is an apocalyptic number.

2157330880 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 2157330880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2800624320).

2157330880 is an abundant number, since it is smaller than the sum of its proper divisors (3443917760).

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

2157330880 is a wasteful number, since it uses less digits than its factorization.

2157330880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247 (or 237 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 2157330880 is about 46447.0761189550. The cubic root of 2157330880 is about 1292.1281459670.

The spelling of 2157330880 in words is "two billion, one hundred fifty-seven million, three hundred thirty thousand, eight hundred eighty".