22399748280 has 1152 divisors, whose sum is σ = 98818574400. Its totient is φ = 4347592704.

The previous prime is 22399748257. The next prime is 22399748281. The reversal of 22399748280 is 8284799322.

It is a happy number.

22399748280 is a `hidden beast` number, since 2 + 239 + 97 + 48 + 280 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22399748281) by changing a digit.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 230925192 + ... + 230925288.

Almost surely, 2^22399748280 is an apocalyptic number.

22399748280 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 22399748280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49409287200).

22399748280 is an abundant number, since it is smaller than the sum of its proper divisors (76418826120).

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

22399748280 is a wasteful number, since it uses less digits than its factorization.

22399748280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213 (or 199 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 54.

The spelling of 22399748280 in words is "twenty-two billion, three hundred ninety-nine million, seven hundred forty-eight thousand, two hundred eighty".