22493712 has 20 divisors (see below), whose sum is σ = 58108880. Its totient is φ = 7497888.

The previous prime is 22493711. The next prime is 22493717. The reversal of 22493712 is 21739422.

It is a super-3 number, since 3×22493712³ (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 22493712.

It is not an unprimeable number, because it can be changed into a prime (22493711) 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 3 ways as a sum of consecutive naturals, for example, 234262 + ... + 234357.

It is an arithmetic number, because the mean of its divisors is an integer number (2905444).

Almost surely, 2^22493712 is an apocalyptic number.

It is an amenable number.

22493712 is an abundant number, since it is smaller than the sum of its proper divisors (35615168).

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

22493712 is a wasteful number, since it uses less digits than its factorization.

22493712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468630 (or 468624 counting only the distinct ones).

The product of its digits is 6048, while the sum is 30.

The square root of 22493712 is about 4742.7536305400. The cubic root of 22493712 is about 282.2845073938.

The spelling of 22493712 in words is "twenty-two million, four hundred ninety-three thousand, seven hundred twelve".