22747938 has 16 divisors (see below), whose sum is σ = 48172320. Its totient is φ = 7136576.

The previous prime is 22747931. The next prime is 22747951. The reversal of 22747938 is 83974722.

It is a self number, because there is not a number n which added to its sum of digits gives 22747938.

It is not an unprimeable number, because it can be changed into a prime (22747931) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111408 + ... + 111611.

It is an arithmetic number, because the mean of its divisors is an integer number (3010770).

Almost surely, 2^22747938 is an apocalyptic number.

22747938 is an abundant number, since it is smaller than the sum of its proper divisors (25424382).

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

22747938 is a wasteful number, since it uses less digits than its factorization.

22747938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223041.

The product of its digits is 169344, while the sum is 42.

The square root of 22747938 is about 4769.4798458532. The cubic root of 22747938 is about 283.3439943701.

The spelling of 22747938 in words is "twenty-two million, seven hundred forty-seven thousand, nine hundred thirty-eight".