18534498 has 8 divisors (see below), whose sum is σ = 37069008. Its totient is φ = 6178164.

The previous prime is 18534491. The next prime is 18534499. The reversal of 18534498 is 89443581.

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

18534498 is an admirable number.

It is a super-2 number, since 2×18534498² = 687055232224008, which contains 22 as substring.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (18534491) 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, 1544536 + ... + 1544547.

It is an arithmetic number, because the mean of its divisors is an integer number (4633626).

Almost surely, 2^18534498 is an apocalyptic number.

18534498 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.

18534498 is a wasteful number, since it uses less digits than its factorization.

18534498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3089088.

The product of its digits is 138240, while the sum is 42.

The square root of 18534498 is about 4305.1710767402. The cubic root of 18534498 is about 264.6429176543.

The spelling of 18534498 in words is "eighteen million, five hundred thirty-four thousand, four hundred ninety-eight".