22730386756 has 135 divisors (see below), whose sum is σ = 51477844845. Its totient is φ = 8756489280.

The previous prime is 22730386733. The next prime is 22730386759. The reversal of 22730386756 is 65768303722.

The square root of 22730386756 is 150766.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 4364716356 + 18365670400 = 66066^2 + 135520^2 .

It is a Harshad number since it is a multiple of its sum of digits (49).

It is not an unprimeable number, because it can be changed into a prime (22730386759) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 255397560 + ... + 255397648.

Almost surely, 2^22730386756 is an apocalyptic number.

22730386756 is the 150766-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22730386756

22730386756 is an abundant number, since it is smaller than the sum of its proper divisors (28747458089).

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

22730386756 is an frugal number, since it uses more digits than its factorization.

22730386756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240 (or 109 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 49.

Multiplying 22730386756 by its sum of digits (49), we get a square (1113788951044 = 1055362²).

22730386756 divided by its sum of digits (49) gives a square (463885444 = 21538²).

The spelling of 22730386756 in words is "twenty-two billion, seven hundred thirty million, three hundred eighty-six thousand, seven hundred fifty-six".