22259232 has 48 divisors (see below), whose sum is σ = 64925280. Its totient is φ = 7419456.

The previous prime is 22259219. The next prime is 22259243. The reversal of 22259232 is 23295222.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 22259196 and 22259205.

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, 12018 + ... + 13745.

It is an arithmetic number, because the mean of its divisors is an integer number (1352610).

Almost surely, 2^22259232 is an apocalyptic number.

It is an amenable number.

22259232 is an abundant number, since it is smaller than the sum of its proper divisors (42666048).

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

22259232 is a wasteful number, since it uses less digits than its factorization.

22259232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25782 (or 25768 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 22259232 is about 4717.9690545827. The cubic root of 22259232 is about 281.3002114797.

The spelling of 22259232 in words is "twenty-two million, two hundred fifty-nine thousand, two hundred thirty-two".