22747072 has 28 divisors (see below), whose sum is σ = 45481240. Its totient is φ = 11287296.

The previous prime is 22747061. The next prime is 22747073. The reversal of 22747072 is 27074722.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22747073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7618 + ... + 10174.

It is an arithmetic number, because the mean of its divisors is an integer number (1624330).

Almost surely, 2^22747072 is an apocalyptic number.

It is an amenable number.

22747072 is a deficient number, since it is larger than the sum of its proper divisors (22734168).

22747072 is a wasteful number, since it uses less digits than its factorization.

22747072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2708 (or 2698 counting only the distinct ones).

The product of its (nonzero) digits is 10976, while the sum is 31.

The square root of 22747072 is about 4769.3890594079. The cubic root of 22747072 is about 283.3403987473.

The spelling of 22747072 in words is "twenty-two million, seven hundred forty-seven thousand, seventy-two".