18394036 has 12 divisors (see below), whose sum is σ = 33228160. Its totient is φ = 8900280.

The previous prime is 18393989. The next prime is 18394073. The reversal of 18394036 is 63049381.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 18393992 and 18394010.

It is a congruent number.

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, 74046 + ... + 74293.

Almost surely, 2^18394036 is an apocalyptic number.

It is an amenable number.

18394036 is a deficient number, since it is larger than the sum of its proper divisors (14834124).

18394036 is a wasteful number, since it uses less digits than its factorization.

18394036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148374 (or 148372 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 18394036 is about 4288.8268792293. The cubic root of 18394036 is about 263.9726976663.

The spelling of 18394036 in words is "eighteen million, three hundred ninety-four thousand, thirty-six".