18369236 has 12 divisors (see below), whose sum is σ = 33183360. Its totient is φ = 8888280.

The previous prime is 18369233. The next prime is 18369259. The reversal of 18369236 is 63296381.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 18369236.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18369233) 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, 73946 + ... + 74193.

It is an arithmetic number, because the mean of its divisors is an integer number (2765280).

Almost surely, 2^18369236 is an apocalyptic number.

It is an amenable number.

18369236 is a deficient number, since it is larger than the sum of its proper divisors (14814124).

18369236 is a wasteful number, since it uses less digits than its factorization.

18369236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148174 (or 148172 counting only the distinct ones).

The product of its digits is 46656, while the sum is 38.

The square root of 18369236 is about 4285.9346705240. The cubic root of 18369236 is about 263.8540094267.

The spelling of 18369236 in words is "eighteen million, three hundred sixty-nine thousand, two hundred thirty-six".