22613018 has 8 divisors (see below), whose sum is σ = 34328448. Its totient is φ = 11170204.

The previous prime is 22612999. The next prime is 22613023. The reversal of 22613018 is 81031622.

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

It is a super-2 number, since 2×22613018² = 1022697166136648, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22612984 and 22613002.

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, 67946 + ... + 68277.

It is an arithmetic number, because the mean of its divisors is an integer number (4291056).

Almost surely, 2^22613018 is an apocalyptic number.

22613018 is a deficient number, since it is larger than the sum of its proper divisors (11715430).

22613018 is a wasteful number, since it uses less digits than its factorization.

22613018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136308.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 22613018 is about 4755.3147109313. The cubic root of 22613018 is about 282.7827039191.

The spelling of 22613018 in words is "twenty-two million, six hundred thirteen thousand, eighteen".