22331052 has 60 divisors (see below), whose sum is σ = 58883440. Its totient is φ = 7379424.

The previous prime is 22331039. The next prime is 22331053. The reversal of 22331052 is 25013322.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (22331053) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 50649 + ... + 51087.

Almost surely, 2^22331052 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22331052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29441720).

22331052 is an abundant number, since it is smaller than the sum of its proper divisors (36552388).

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

22331052 is a wasteful number, since it uses less digits than its factorization.

22331052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612 (or 601 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 22331052 is about 4725.5742508186. The cubic root of 22331052 is about 281.6024275305.

Adding to 22331052 its reverse (25013322), we get a palindrome (47344374).

The spelling of 22331052 in words is "twenty-two million, three hundred thirty-one thousand, fifty-two".