22700018 has 32 divisors (see below), whose sum is σ = 38741760. Its totient is φ = 9884160.

The previous prime is 22700017. The next prime is 22700033. The reversal of 22700018 is 81000722.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22700017) 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, 64130 + ... + 64482.

It is an arithmetic number, because the mean of its divisors is an integer number (1210680).

Almost surely, 2^22700018 is an apocalyptic number.

22700018 is a deficient number, since it is larger than the sum of its proper divisors (16041742).

22700018 is a wasteful number, since it uses less digits than its factorization.

22700018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482.

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 22700018 is about 4764.4535888179. The cubic root of 22700018 is about 283.1448936928.

The spelling of 22700018 in words is "twenty-two million, seven hundred thousand, eighteen".