22268478 has 16 divisors (see below), whose sum is σ = 45974016. Its totient is φ = 7183320.

The previous prime is 22268471. The next prime is 22268483. The reversal of 22268478 is 87486222.

It is a super-2 number, since 2×22268478² = 991770224872968, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22268471) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59676 + ... + 60047.

It is an arithmetic number, because the mean of its divisors is an integer number (2873376).

Almost surely, 2^22268478 is an apocalyptic number.

22268478 is an abundant number, since it is smaller than the sum of its proper divisors (23705538).

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

22268478 is a wasteful number, since it uses less digits than its factorization.

22268478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119759.

The product of its digits is 86016, while the sum is 39.

The square root of 22268478 is about 4718.9488236259. The cubic root of 22268478 is about 281.3391547478.

The spelling of 22268478 in words is "twenty-two million, two hundred sixty-eight thousand, four hundred seventy-eight".