22742264 has 32 divisors (see below), whose sum is σ = 44863200. Its totient is φ = 10792320.

The previous prime is 22742197. The next prime is 22742273. The reversal of 22742264 is 46224722.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

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, 13349 + ... + 14955.

It is an arithmetic number, because the mean of its divisors is an integer number (1401975).

Almost surely, 2^22742264 is an apocalyptic number.

It is an amenable number.

22742264 is a deficient number, since it is larger than the sum of its proper divisors (22120936).

22742264 is a wasteful number, since it uses less digits than its factorization.

22742264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1703 (or 1699 counting only the distinct ones).

The product of its digits is 10752, while the sum is 29.

The square root of 22742264 is about 4768.8849849834. The cubic root of 22742264 is about 283.3204343224.

Adding to 22742264 its reverse (46224722), we get a palindrome (68966986).

The spelling of 22742264 in words is "twenty-two million, seven hundred forty-two thousand, two hundred sixty-four".