22222738 has 16 divisors (see below), whose sum is σ = 35634816. Its totient is φ = 10368160.

The previous prime is 22222721. The next prime is 22222747. The reversal of 22222738 is 83722222.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4006 + ... + 7777.

It is an arithmetic number, because the mean of its divisors is an integer number (2227176).

Almost surely, 2^22222738 is an apocalyptic number.

22222738 is a deficient number, since it is larger than the sum of its proper divisors (13412078).

22222738 is a wasteful number, since it uses less digits than its factorization.

22222738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11849.

The product of its digits is 5376, while the sum is 28.

The square root of 22222738 is about 4714.0999140875. The cubic root of 22222738 is about 281.1463968696.

The spelling of 22222738 in words is "twenty-two million, two hundred twenty-two thousand, seven hundred thirty-eight".