22312052 has 18 divisors (see below), whose sum is σ = 45421362. Its totient is φ = 9562224.

The previous prime is 22312019. The next prime is 22312063. The reversal of 22312052 is 25021322.

It can be written as a sum of positive squares in only one way, i.e., 16032016 + 6280036 = 4004^2 + 2506^2 .

It is a super-3 number, since 3×22312052³ (a number of 23 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22312052.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 56723 + ... + 57114.

It is an arithmetic number, because the mean of its divisors is an integer number (2523409).

Almost surely, 2^22312052 is an apocalyptic number.

It is an amenable number.

22312052 is an abundant number, since it is smaller than the sum of its proper divisors (23109310).

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

22312052 is a wasteful number, since it uses less digits than its factorization.

22312052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113855 (or 113846 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 22312052 is about 4723.5634853360. The cubic root of 22312052 is about 281.5225393060.

Adding to 22312052 its reverse (25021322), we get a palindrome (47333374).

The spelling of 22312052 in words is "twenty-two million, three hundred twelve thousand, fifty-two".