2168970520 has 32 divisors (see below), whose sum is σ = 4999216320. Its totient is φ = 846426880.

The previous prime is 2168970497. The next prime is 2168970533. The reversal of 2168970520 is 250798612.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

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, 659632 + ... + 662911.

It is an arithmetic number, because the mean of its divisors is an integer number (156225510).

Almost surely, 2^2168970520 is an apocalyptic number.

2168970520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2168970520 is an abundant number, since it is smaller than the sum of its proper divisors (2830245800).

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

2168970520 is a wasteful number, since it uses less digits than its factorization.

2168970520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1322595 (or 1322591 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 2168970520 is about 46572.2075920822. The cubic root of 2168970520 is about 1294.4478239020.

The spelling of 2168970520 in words is "two billion, one hundred sixty-eight million, nine hundred seventy thousand, five hundred twenty".