22897930 has 64 divisors (see below), whose sum is σ = 47443968. Its totient is φ = 7882560.

The previous prime is 22897909. The next prime is 22897943. The reversal of 22897930 is 3979822.

22897930 = T₁ + T₂ + ... + T₅₁₅.

22897930 is a nontrivial binomial coefficient, being equal to C(517, 3).

It is an unprimeable number.

It is the 515-th tetrahedral number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 222259 + ... + 222361.

It is an arithmetic number, because the mean of its divisors is an integer number (741312).

Almost surely, 2^22897930 is an apocalyptic number.

22897930 is an abundant number, since it is smaller than the sum of its proper divisors (24546038).

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

22897930 is a wasteful number, since it uses less digits than its factorization.

22897930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 22897930 is about 4785.1781576029. The cubic root of 22897930 is about 283.9653878998.

The spelling of 22897930 in words is "twenty-two million, eight hundred ninety-seven thousand, nine hundred thirty".