22845072 has 40 divisors (see below), whose sum is σ = 61585344. Its totient is φ = 7283584.

The previous prime is 22845071. The next prime is 22845073. The reversal of 22845072 is 27054822.

It is an interprime number because it is at equal distance from previous prime (22845071) and next prime (22845073).

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (22845071) 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 7 ways as a sum of consecutive naturals, for example, 9243 + ... + 11450.

Almost surely, 2^22845072 is an apocalyptic number.

It is an amenable number.

22845072 is an abundant number, since it is smaller than the sum of its proper divisors (38740272).

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

22845072 is a wasteful number, since it uses less digits than its factorization.

22845072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20727 (or 20721 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 22845072 is about 4779.6518701680. The cubic root of 22845072 is about 283.7467159213.

Adding to 22845072 its reverse (27054822), we get a palindrome (49899894).

The spelling of 22845072 in words is "twenty-two million, eight hundred forty-five thousand, seventy-two".