18313494 has 8 divisors (see below), whose sum is σ = 36627000. Its totient is φ = 6104496.

The previous prime is 18313489. The next prime is 18313501. The reversal of 18313494 is 49431381.

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

18313494 is an admirable number.

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, 1526119 + ... + 1526130.

It is an arithmetic number, because the mean of its divisors is an integer number (4578375).

Almost surely, 2^18313494 is an apocalyptic number.

18313494 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18313494 is a wasteful number, since it uses less digits than its factorization.

18313494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3052254.

The product of its digits is 10368, while the sum is 33.

The square root of 18313494 is about 4279.4268307800. The cubic root of 18313494 is about 263.5868480278.

The spelling of 18313494 in words is "eighteen million, three hundred thirteen thousand, four hundred ninety-four".