22923449280 has 224 divisors, whose sum is σ = 81657139200. Its totient is φ = 6053336064.

The previous prime is 22923449257. The next prime is 22923449287. The reversal of 22923449280 is 8294432922.

22923449280 is a `hidden beast` number, since 2 + 29 + 2 + 344 + 9 + 280 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22923449287) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 877041 + ... + 902799.

It is an arithmetic number, because the mean of its divisors is an integer number (364540800).

Almost surely, 2^22923449280 is an apocalyptic number.

22923449280 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 22923449280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40828569600).

22923449280 is an abundant number, since it is smaller than the sum of its proper divisors (58733689920).

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

22923449280 is a wasteful number, since it uses less digits than its factorization.

22923449280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25888 (or 25872 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 45.

The spelling of 22923449280 in words is "twenty-two billion, nine hundred twenty-three million, four hundred forty-nine thousand, two hundred eighty".