22790232 has 24 divisors (see below), whose sum is σ = 61723740. Its totient is φ = 7596720.

The previous prime is 22790231. The next prime is 22790267. The reversal of 22790232 is 23209722.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×22790232² = 1038789349227648, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22790196 and 22790205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22790231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 158194 + ... + 158337.

Almost surely, 2^22790232 is an apocalyptic number.

It is an amenable number.

22790232 is an abundant number, since it is smaller than the sum of its proper divisors (38933508).

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

22790232 is a wasteful number, since it uses less digits than its factorization.

22790232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316543 (or 316536 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 22790232 is about 4773.9116037061. The cubic root of 22790232 is about 283.5194876631.

Adding to 22790232 its reverse (23209722), we get a palindrome (45999954).

The spelling of 22790232 in words is "twenty-two million, seven hundred ninety thousand, two hundred thirty-two".