22573347840 has 352 divisors, whose sum is σ = 80644594560. Its totient is φ = 5987893248.

The previous prime is 22573347827. The next prime is 22573347869. The reversal of 22573347840 is 4874337522.

22573347840 is a `hidden beast` number, since 2 + 2 + 573 + 3 + 4 + 78 + 4 + 0 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39121632 + ... + 39122208.

Almost surely, 2^22573347840 is an apocalyptic number.

22573347840 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 22573347840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40322297280).

22573347840 is an abundant number, since it is smaller than the sum of its proper divisors (58071246720).

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

22573347840 is a wasteful number, since it uses less digits than its factorization.

22573347840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 894 (or 870 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 45.

The spelling of 22573347840 in words is "twenty-two billion, five hundred seventy-three million, three hundred forty-seven thousand, eight hundred forty".