22428264 has 32 divisors (see below), whose sum is σ = 56197440. Its totient is φ = 7459200.

The previous prime is 22428257. The next prime is 22428269. The reversal of 22428264 is 46282422.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (22428269) 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, 14404 + ... + 15884.

It is an arithmetic number, because the mean of its divisors is an integer number (1756170).

Almost surely, 2^22428264 is an apocalyptic number.

22428264 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

22428264 is an abundant number, since it is smaller than the sum of its proper divisors (33769176).

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

22428264 is a wasteful number, since it uses less digits than its factorization.

22428264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2121 (or 2117 counting only the distinct ones).

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

The square root of 22428264 is about 4735.8488151545. The cubic root of 22428264 is about 282.0104618623.

The spelling of 22428264 in words is "twenty-two million, four hundred twenty-eight thousand, two hundred sixty-four".