22748224860 has 72 divisors (see below), whose sum is σ = 69246930480. Its totient is φ = 6044744448.

The previous prime is 22748224813. The next prime is 22748224903. The reversal of 22748224860 is 6842284722.

22748224860 is a `hidden beast` number, since 2 + 274 + 82 + 248 + 60 = 666.

It is a super-2 number, since 2×22748224860² (a number of 22 digits) contains 22 as substring.

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 23 ways as a sum of consecutive naturals, for example, 172345 + ... + 274224.

Almost surely, 2^22748224860 is an apocalyptic number.

22748224860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22748224860 is an abundant number, since it is smaller than the sum of its proper divisors (46498705620).

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

22748224860 is a wasteful number, since it uses less digits than its factorization.

22748224860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446867 (or 446862 counting only the distinct ones).

The product of its (nonzero) digits is 688128, while the sum is 45.

The spelling of 22748224860 in words is "twenty-two billion, seven hundred forty-eight million, two hundred twenty-four thousand, eight hundred sixty".