22772734 has 4 divisors (see below), whose sum is σ = 34159104. Its totient is φ = 11386366.

The previous prime is 22772731. The next prime is 22772749. The reversal of 22772734 is 43727722.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43727722 = 2 ⋅21863861.

It is a self number, because there is not a number n which added to its sum of digits gives 22772734.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22772731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5693182 + ... + 5693185.

It is an arithmetic number, because the mean of its divisors is an integer number (8539776).

Almost surely, 2^22772734 is an apocalyptic number.

22772734 is a deficient number, since it is larger than the sum of its proper divisors (11386370).

22772734 is a wasteful number, since it uses less digits than its factorization.

22772734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11386369.

The product of its digits is 32928, while the sum is 34.

The square root of 22772734 is about 4772.0785827562. The cubic root of 22772734 is about 283.4469084078.

The spelling of 22772734 in words is "twenty-two million, seven hundred seventy-two thousand, seven hundred thirty-four".