22655438 has 16 divisors (see below), whose sum is σ = 37860480. Its totient is φ = 10095456.

The previous prime is 22655419. The next prime is 22655443. The reversal of 22655438 is 83455622.

It is a junction number, because it is equal to n+sod(n) for n = 22655398 and 22655407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14270 + ... + 15777.

It is an arithmetic number, because the mean of its divisors is an integer number (2366280).

Almost surely, 2^22655438 is an apocalyptic number.

22655438 is a deficient number, since it is larger than the sum of its proper divisors (15205042).

22655438 is a wasteful number, since it uses less digits than its factorization.

22655438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30091.

The product of its digits is 57600, while the sum is 35.

The square root of 22655438 is about 4759.7728937419. The cubic root of 22655438 is about 282.9594184881.

The spelling of 22655438 in words is "twenty-two million, six hundred fifty-five thousand, four hundred thirty-eight".