2162497920 has 512 divisors, whose sum is σ = 8407411200. Its totient is φ = 465960960.

The previous prime is 2162497919. The next prime is 2162497943. The reversal of 2162497920 is 297942612.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6821602 + ... + 6821918.

It is an arithmetic number, because the mean of its divisors is an integer number (16420725).

Almost surely, 2^2162497920 is an apocalyptic number.

2162497920 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 2162497920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4203705600).

2162497920 is an abundant number, since it is smaller than the sum of its proper divisors (6244913280).

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

2162497920 is a wasteful number, since it uses less digits than its factorization.

2162497920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386 (or 374 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 2162497920 is about 46502.6657300418. The cubic root of 2162497920 is about 1293.1589188639.

The spelling of 2162497920 in words is "two billion, one hundred sixty-two million, four hundred ninety-seven thousand, nine hundred twenty".