22022008 has 16 divisors (see below), whose sum is σ = 41415480. Its totient is φ = 10977888.

The previous prime is 22021981. The next prime is 22022009. The reversal of 22022008 is 80022022.

It is a junction number, because it is equal to n+sod(n) for n = 22021982 and 22022000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22022009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1191 + ... + 6742.

Almost surely, 2^22022008 is an apocalyptic number.

It is an amenable number.

22022008 is a deficient number, since it is larger than the sum of its proper divisors (19393472).

22022008 is a wasteful number, since it uses less digits than its factorization.

22022008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8286 (or 8282 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 22022008 is about 4692.7612340710. The cubic root of 22022008 is about 280.2973372016.

The spelling of 22022008 in words is "twenty-two million, twenty-two thousand, eight".