2160634820 has 24 divisors (see below), whose sum is σ = 4539041304. Its totient is φ = 863928576.

The previous prime is 2160634813. The next prime is 2160634841. The reversal of 2160634820 is 284360612.

It can be written as a sum of positive squares in 4 ways, for example, as 988036 + 2159646784 = 994^2 + 46472^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38234 + ... + 76046.

It is an arithmetic number, because the mean of its divisors is an integer number (189126721).

Almost surely, 2^2160634820 is an apocalyptic number.

2160634820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2160634820 is an abundant number, since it is smaller than the sum of its proper divisors (2378406484).

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

2160634820 is a wasteful number, since it uses less digits than its factorization.

2160634820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40679 (or 40677 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 2160634820 is about 46482.6292285624. The cubic root of 2160634820 is about 1292.7874384882.

The spelling of 2160634820 in words is "two billion, one hundred sixty million, six hundred thirty-four thousand, eight hundred twenty".