18342498 has 32 divisors (see below), whose sum is σ = 37884672. Its totient is φ = 5916800.

The previous prime is 18342497. The next prime is 18342503. The reversal of 18342498 is 89424381.

It is not an unprimeable number, because it can be changed into a prime (18342497) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42343 + ... + 42773.

It is an arithmetic number, because the mean of its divisors is an integer number (1183896).

Almost surely, 2^18342498 is an apocalyptic number.

18342498 is an abundant number, since it is smaller than the sum of its proper divisors (19542174).

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

18342498 is a wasteful number, since it uses less digits than its factorization.

18342498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 650.

The product of its digits is 55296, while the sum is 39.

The square root of 18342498 is about 4282.8142616742. The cubic root of 18342498 is about 263.7259265405.

The spelling of 18342498 in words is "eighteen million, three hundred forty-two thousand, four hundred ninety-eight".