22012008 has 32 divisors (see below), whose sum is σ = 58268160. Its totient is φ = 6905600.

The previous prime is 22011967. The next prime is 22012019. The reversal of 22012008 is 80021022.

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, 26568 + ... + 27383.

It is an arithmetic number, because the mean of its divisors is an integer number (1820880).

Almost surely, 2^22012008 is an apocalyptic number.

It is an amenable number.

22012008 is an abundant number, since it is smaller than the sum of its proper divisors (36256152).

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

22012008 is a wasteful number, since it uses less digits than its factorization.

22012008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53977 (or 53973 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 22012008 is about 4691.6956423025. The cubic root of 22012008 is about 280.2549039268.

The spelling of 22012008 in words is "twenty-two million, twelve thousand, eight".