18706026 has 16 divisors (see below), whose sum is σ = 37564128. Its totient is φ = 6210000.

The previous prime is 18706007. The next prime is 18706027. The reversal of 18706026 is 62060781.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 18705984 and 18706002.

It is not an unprimeable number, because it can be changed into a prime (18706027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4705 + ... + 7716.

It is an arithmetic number, because the mean of its divisors is an integer number (2347758).

Almost surely, 2^18706026 is an apocalyptic number.

18706026 is an abundant number, since it is smaller than the sum of its proper divisors (18858102).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18706026 is a wasteful number, since it uses less digits than its factorization.

18706026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12677.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 18706026 is about 4325.0463581331. The cubic root of 18706026 is about 265.4567937324.

The spelling of 18706026 in words is "eighteen million, seven hundred six thousand, twenty-six".