18364942 has 8 divisors (see below), whose sum is σ = 27671616. Its totient is φ = 9141072.

The previous prime is 18364939. The next prime is 18364943. The reversal of 18364942 is 24946381.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18364943) 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, 20143 + ... + 21034.

It is an arithmetic number, because the mean of its divisors is an integer number (3458952).

Almost surely, 2^18364942 is an apocalyptic number.

18364942 is a deficient number, since it is larger than the sum of its proper divisors (9306674).

18364942 is a wasteful number, since it uses less digits than its factorization.

18364942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41402.

The product of its digits is 41472, while the sum is 37.

The square root of 18364942 is about 4285.4337003389. The cubic root of 18364942 is about 263.8334482847.

It can be divided in two parts, 18364 and 942, that added together give a triangular number (19306 = T₁₉₆).

The spelling of 18364942 in words is "eighteen million, three hundred sixty-four thousand, nine hundred forty-two".