22994359920 has 640 divisors, whose sum is σ = 93259745280. Its totient is φ = 5099397120.

The previous prime is 22994359903. The next prime is 22994359931. The reversal of 22994359920 is 2995349922.

It is a happy number.

22994359920 is a `hidden beast` number, since 2 + 2 + 9 + 9 + 43 + 599 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 98688124 + ... + 98688356.

It is an arithmetic number, because the mean of its divisors is an integer number (145718352).

Almost surely, 2^22994359920 is an apocalyptic number.

22994359920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22994359920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46629872640).

22994359920 is an abundant number, since it is smaller than the sum of its proper divisors (70265385360).

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

22994359920 is a wasteful number, since it uses less digits than its factorization.

22994359920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430 (or 418 counting only the distinct ones).

The product of its (nonzero) digits is 3149280, while the sum is 54.

The spelling of 22994359920 in words is "twenty-two billion, nine hundred ninety-four million, three hundred fifty-nine thousand, nine hundred twenty".