18694028 has 12 divisors (see below), whose sum is σ = 33598992. Its totient is φ = 9094320.

The previous prime is 18693979. The next prime is 18694031. The reversal of 18694028 is 82049681.

It is a junction number, because it is equal to n+sod(n) for n = 18693982 and 18694000.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63008 + ... + 63303.

It is an arithmetic number, because the mean of its divisors is an integer number (2799916).

Almost surely, 2^18694028 is an apocalyptic number.

It is an amenable number.

18694028 is a deficient number, since it is larger than the sum of its proper divisors (14904964).

18694028 is a wasteful number, since it uses less digits than its factorization.

18694028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126352 (or 126350 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 38.

The square root of 18694028 is about 4323.6590984952. The cubic root of 18694028 is about 265.4000271448.

The spelling of 18694028 in words is "eighteen million, six hundred ninety-four thousand, twenty-eight".