22428426 has 32 divisors (see below), whose sum is σ = 46992960. Its totient is φ = 7126784.

The previous prime is 22428383. The next prime is 22428431. The reversal of 22428426 is 62482422.

It is a junction number, because it is equal to n+sod(n) for n = 22428393 and 22428402.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13666 + ... + 15218.

It is an arithmetic number, because the mean of its divisors is an integer number (1468530).

Almost surely, 2^22428426 is an apocalyptic number.

22428426 is an abundant number, since it is smaller than the sum of its proper divisors (24564534).

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

22428426 is a wasteful number, since it uses less digits than its factorization.

22428426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1670.

The product of its digits is 12288, while the sum is 30.

The square root of 22428426 is about 4735.8659187101. The cubic root of 22428426 is about 282.0111408505.

The spelling of 22428426 in words is "twenty-two million, four hundred twenty-eight thousand, four hundred twenty-six".