20422674 has 24 divisors (see below), whose sum is σ = 45330012. Its totient is φ = 6641280.

The previous prime is 20422669. The next prime is 20422691. The reversal of 20422674 is 47622402.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 13373649 + 7049025 = 3657^2 + 2655^2 .

It is a super-2 number, since 2×20422674² = 834171226620552, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13099 + ... + 14574.

Almost surely, 2^20422674 is an apocalyptic number.

20422674 is an abundant number, since it is smaller than the sum of its proper divisors (24907338).

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

20422674 is a wasteful number, since it uses less digits than its factorization.

20422674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27722 (or 27719 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 27.

The square root of 20422674 is about 4519.1452731684. The cubic root of 20422674 is about 273.3406366612.

The spelling of 20422674 in words is "twenty million, four hundred twenty-two thousand, six hundred seventy-four".