22460497920 has 552 divisors, whose sum is σ = 94220833824. Its totient is φ = 4831838208.

The previous prime is 22460497909. The next prime is 22460497951. The reversal of 22460497920 is 2979406422.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1321205752 + ... + 1321205768.

Almost surely, 2^22460497920 is an apocalyptic number.

22460497920 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 22460497920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47110416912).

22460497920 is an abundant number, since it is smaller than the sum of its proper divisors (71760335904).

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

22460497920 is an frugal number, since it uses more digits than its factorization.

22460497920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79 (or 34 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The spelling of 22460497920 in words is "twenty-two billion, four hundred sixty million, four hundred ninety-seven thousand, nine hundred twenty".