2162453880 has 64 divisors (see below), whose sum is σ = 6544812960. Its totient is φ = 571547648.

The previous prime is 2162453833. The next prime is 2162453903. The reversal of 2162453880 is 883542612.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66177 + ... + 93296.

Almost surely, 2^2162453880 is an apocalyptic number.

2162453880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2162453880 is an abundant number, since it is smaller than the sum of its proper divisors (4382359080).

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

2162453880 is a wasteful number, since it uses less digits than its factorization.

2162453880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159600 (or 159596 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 39.

The square root of 2162453880 is about 46502.1922063896. The cubic root of 2162453880 is about 1293.1501402650.

The spelling of 2162453880 in words is "two billion, one hundred sixty-two million, four hundred fifty-three thousand, eight hundred eighty".