22915916 has 12 divisors (see below), whose sum is σ = 41485920. Its totient is φ = 11062800.

The previous prime is 22915909. The next prime is 22915927. The reversal of 22915916 is 61951922.

It is a super-2 number, since 2×22915916² = 1050278412238112, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98660 + ... + 98891.

It is an arithmetic number, because the mean of its divisors is an integer number (3457160).

Almost surely, 2^22915916 is an apocalyptic number.

It is an amenable number.

22915916 is a deficient number, since it is larger than the sum of its proper divisors (18570004).

22915916 is a wasteful number, since it uses less digits than its factorization.

22915916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197584 (or 197582 counting only the distinct ones).

The product of its digits is 9720, while the sum is 35.

The square root of 22915916 is about 4787.0571335634. The cubic root of 22915916 is about 284.0397187060.

The spelling of 22915916 in words is "twenty-two million, nine hundred fifteen thousand, nine hundred sixteen".