22604422 has 4 divisors (see below), whose sum is σ = 33906636. Its totient is φ = 11302210.

The previous prime is 22604419. The next prime is 22604431. The reversal of 22604422 is 22440622.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22440622 = 2 ⋅11220311.

It is a junction number, because it is equal to n+sod(n) for n = 22604393 and 22604402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5651104 + ... + 5651107.

It is an arithmetic number, because the mean of its divisors is an integer number (8476659).

Almost surely, 2^22604422 is an apocalyptic number.

22604422 is a deficient number, since it is larger than the sum of its proper divisors (11302214).

22604422 is a wasteful number, since it uses less digits than its factorization.

22604422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11302213.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 22604422 is about 4754.4107941994. The cubic root of 22604422 is about 282.7468675084.

The spelling of 22604422 in words is "twenty-two million, six hundred four thousand, four hundred twenty-two".