22268724 has 48 divisors (see below), whose sum is σ = 53706240. Its totient is φ = 7178080.

The previous prime is 22268713. The next prime is 22268731. The reversal of 22268724 is 42786222.

22268724 is nontrivially palindromic in base 14.

It is a congruent number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 50047 + ... + 50489.

It is an arithmetic number, because the mean of its divisors is an integer number (1118880).

Almost surely, 2^22268724 is an apocalyptic number.

It is an amenable number.

22268724 is an abundant number, since it is smaller than the sum of its proper divisors (31437516).

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

22268724 is a wasteful number, since it uses less digits than its factorization.

22268724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580 (or 578 counting only the distinct ones).

The product of its digits is 21504, while the sum is 33.

The square root of 22268724 is about 4718.9748886808. The cubic root of 22268724 is about 281.3401907290.

The spelling of 22268724 in words is "twenty-two million, two hundred sixty-eight thousand, seven hundred twenty-four".