18494036 has 12 divisors (see below), whose sum is σ = 35306880. Its totient is φ = 8406360.

The previous prime is 18494033. The next prime is 18494051. The reversal of 18494036 is 63049481.

It is a junction number, because it is equal to n+sod(n) for n = 18493987 and 18494005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18494033) 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, 210116 + ... + 210203.

It is an arithmetic number, because the mean of its divisors is an integer number (2942240).

Almost surely, 2^18494036 is an apocalyptic number.

It is an amenable number.

18494036 is a deficient number, since it is larger than the sum of its proper divisors (16812844).

18494036 is a wasteful number, since it uses less digits than its factorization.

18494036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420334 (or 420332 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 18494036 is about 4300.4692767185. The cubic root of 18494036 is about 264.4501998502.

It can be divided in two parts, 1849 and 4036, that added together give a palindrome (5885).

The spelling of 18494036 in words is "eighteen million, four hundred ninety-four thousand, thirty-six".