22724859 has 16 divisors (see below), whose sum is σ = 30981888. Its totient is φ = 14812512.

The previous prime is 22724843. The next prime is 22724887. The reversal of 22724859 is 95842722.

It is not a de Polignac number, because 22724859 - 2⁴ = 22724843 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22724659) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33229 + ... + 33905.

It is an arithmetic number, because the mean of its divisors is an integer number (1936368).

Almost surely, 2^22724859 is an apocalyptic number.

22724859 is a deficient number, since it is larger than the sum of its proper divisors (8257029).

22724859 is a wasteful number, since it uses less digits than its factorization.

22724859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 914.

The product of its digits is 80640, while the sum is 39.

The square root of 22724859 is about 4767.0597856540. The cubic root of 22724859 is about 283.2481393995.

The spelling of 22724859 in words is "twenty-two million, seven hundred twenty-four thousand, eight hundred fifty-nine".