20622128 has 20 divisors (see below), whose sum is σ = 40028688. Its totient is φ = 10292160.

The previous prime is 20622109. The next prime is 20622149. The reversal of 20622128 is 82122602.

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, 12893 + ... + 14403.

Almost surely, 2^20622128 is an apocalyptic number.

It is an amenable number.

20622128 is a deficient number, since it is larger than the sum of its proper divisors (19406560).

20622128 is a wasteful number, since it uses less digits than its factorization.

20622128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2372 (or 2366 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 20622128 is about 4541.1593233446. The cubic root of 20622128 is about 274.2275978474.

The spelling of 20622128 in words is "twenty million, six hundred twenty-two thousand, one hundred twenty-eight".