20422604 has 12 divisors (see below), whose sum is σ = 36094128. Its totient is φ = 10110000.

The previous prime is 20422601. The next prime is 20422609. The reversal of 20422604 is 40622402.

It is a hoax number, since the sum of its digits (20) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (20422601) 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, 24872 + ... + 25679.

It is an arithmetic number, because the mean of its divisors is an integer number (3007844).

Almost surely, 2^20422604 is an apocalyptic number.

It is an amenable number.

20422604 is a deficient number, since it is larger than the sum of its proper divisors (15671524).

20422604 is a wasteful number, since it uses less digits than its factorization.

20422604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50656 (or 50654 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 20422604 is about 4519.1375283344. The cubic root of 20422604 is about 273.3403243635.

The spelling of 20422604 in words is "twenty million, four hundred twenty-two thousand, six hundred four".