18082646 has 16 divisors (see below), whose sum is σ = 28841184. Its totient is φ = 8483904.

The previous prime is 18082637. The next prime is 18082651. The reversal of 18082646 is 64628081.

It is a super-2 number, since 2×18082646² = 653964172722632, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1271 + ... + 6146.

It is an arithmetic number, because the mean of its divisors is an integer number (1802574).

Almost surely, 2^18082646 is an apocalyptic number.

18082646 is a deficient number, since it is larger than the sum of its proper divisors (10758538).

18082646 is a wasteful number, since it uses less digits than its factorization.

18082646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7495.

The product of its (nonzero) digits is 18432, while the sum is 35.

The square root of 18082646 is about 4252.3694571380. The cubic root of 18082646 is about 262.4746267236.

The spelling of 18082646 in words is "eighteen million, eighty-two thousand, six hundred forty-six".