18102826 has 16 divisors (see below), whose sum is σ = 31310784. Its totient is φ = 7689024.

The previous prime is 18102811. The next prime is 18102827. The reversal of 18102826 is 62820181.

It is a junction number, because it is equal to n+sod(n) for n = 18102794 and 18102803.

It is not an unprimeable number, because it can be changed into a prime (18102827) 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, 4140 + ... + 7303.

It is an arithmetic number, because the mean of its divisors is an integer number (1956924).

Almost surely, 2^18102826 is an apocalyptic number.

18102826 is a deficient number, since it is larger than the sum of its proper divisors (13207958).

18102826 is a wasteful number, since it uses less digits than its factorization.

18102826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11565.

The product of its (nonzero) digits is 1536, while the sum is 28.

The square root of 18102826 is about 4254.7415902731. The cubic root of 18102826 is about 262.5722298588.

The spelling of 18102826 in words is "eighteen million, one hundred two thousand, eight hundred twenty-six".