18818026 has 8 divisors (see below), whose sum is σ = 28246464. Its totient is φ = 9402540.

The previous prime is 18817993. The next prime is 18818029. The reversal of 18818026 is 62081881.

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

It is a junction number, because it is equal to n+sod(n) for n = 18817982 and 18818000.

It is not an unprimeable number, because it can be changed into a prime (18818029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2271 + ... + 6541.

It is an arithmetic number, because the mean of its divisors is an integer number (3530808).

Almost surely, 2^18818026 is an apocalyptic number.

18818026 is a deficient number, since it is larger than the sum of its proper divisors (9428438).

18818026 is a wasteful number, since it uses less digits than its factorization.

18818026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6476.

The product of its (nonzero) digits is 6144, while the sum is 34.

The square root of 18818026 is about 4337.9748731407. The cubic root of 18818026 is about 265.9855363647.

The spelling of 18818026 in words is "eighteen million, eight hundred eighteen thousand, twenty-six".