22724458 has 8 divisors (see below), whose sum is σ = 35262180. Its totient is φ = 10970400.

The previous prime is 22724441. The next prime is 22724467. The reversal of 22724458 is 85442722.

It can be written as a sum of positive squares in 2 ways, for example, as 22724289 + 169 = 4767^2 + 13^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 195843 + ... + 195958.

Almost surely, 2^22724458 is an apocalyptic number.

22724458 is a deficient number, since it is larger than the sum of its proper divisors (12537722).

22724458 is a wasteful number, since it uses less digits than its factorization.

22724458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391832.

The product of its digits is 35840, while the sum is 34.

The square root of 22724458 is about 4767.0177260002. The cubic root of 22724458 is about 283.2464733361.

The spelling of 22724458 in words is "twenty-two million, seven hundred twenty-four thousand, four hundred fifty-eight".