22274738 has 4 divisors (see below), whose sum is σ = 33412110. Its totient is φ = 11137368.

The previous prime is 22274737. The next prime is 22274797. The reversal of 22274738 is 83747222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 22250089 + 24649 = 4717^2 + 157^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22274698 and 22274707.

It is not an unprimeable number, because it can be changed into a prime (22274737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5568683 + ... + 5568686.

Almost surely, 2^22274738 is an apocalyptic number.

22274738 is a deficient number, since it is larger than the sum of its proper divisors (11137372).

22274738 is a wasteful number, since it uses less digits than its factorization.

22274738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11137371.

The product of its digits is 37632, while the sum is 35.

The square root of 22274738 is about 4719.6120603287. The cubic root of 22274738 is about 281.3655151499.

The spelling of 22274738 in words is "twenty-two million, two hundred seventy-four thousand, seven hundred thirty-eight".