22724902 has 8 divisors (see below), whose sum is σ = 34498296. Its totient is φ = 11225472.

The previous prime is 22724887. The next prime is 22724909. The reversal of 22724902 is 20942722.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22724909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68283 + ... + 68614.

It is an arithmetic number, because the mean of its divisors is an integer number (4312287).

Almost surely, 2^22724902 is an apocalyptic number.

22724902 is a deficient number, since it is larger than the sum of its proper divisors (11773394).

22724902 is a wasteful number, since it uses less digits than its factorization.

22724902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136982.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 22724902 is about 4767.0642957695. The cubic root of 22724902 is about 283.2483180536.

The spelling of 22724902 in words is "twenty-two million, seven hundred twenty-four thousand, nine hundred two".