18040682 has 24 divisors (see below), whose sum is σ = 30391200. Its totient is φ = 7965360.

The previous prime is 18040679. The next prime is 18040691. The reversal of 18040682 is 28604081.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29819 + ... + 30417.

It is an arithmetic number, because the mean of its divisors is an integer number (1266300).

Almost surely, 2^18040682 is an apocalyptic number.

18040682 is a deficient number, since it is larger than the sum of its proper divisors (12350518).

18040682 is a wasteful number, since it uses less digits than its factorization.

18040682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 686 (or 649 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 18040682 is about 4247.4324008747. The cubic root of 18040682 is about 262.2714297542.

It can be divided in two parts, 18040 and 682, that multiplied together give a triangular number (12303280 = T₄₉₆₀).

The spelling of 18040682 in words is "eighteen million, forty thousand, six hundred eighty-two".