22994688 has 72 divisors (see below), whose sum is σ = 62137600. Its totient is φ = 7547904.

The previous prime is 22994683. The next prime is 22994689. The reversal of 22994688 is 88649922.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22994683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60483 + ... + 60861.

Almost surely, 2^22994688 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 22994688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31068800).

22994688 is an abundant number, since it is smaller than the sum of its proper divisors (39142912).

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

22994688 is an equidigital number, since it uses as much as digits as its factorization.

22994688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 477 (or 463 counting only the distinct ones).

The product of its digits is 497664, while the sum is 48.

The square root of 22994688 is about 4795.2776770485. The cubic root of 22994688 is about 284.3648026452.

The spelling of 22994688 in words is "twenty-two million, nine hundred ninety-four thousand, six hundred eighty-eight".