18542496 has 96 divisors (see below), whose sum is σ = 57068928. Its totient is φ = 5160960.

The previous prime is 18542479. The next prime is 18542497. The reversal of 18542496 is 69424581.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (18542497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27216 + ... + 27888.

It is an arithmetic number, because the mean of its divisors is an integer number (594468).

Almost surely, 2^18542496 is an apocalyptic number.

18542496 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18542496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28534464).

18542496 is an abundant number, since it is smaller than the sum of its proper divisors (38526432).

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

18542496 is a wasteful number, since it uses less digits than its factorization.

18542496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 734 (or 726 counting only the distinct ones).

The product of its digits is 69120, while the sum is 39.

The square root of 18542496 is about 4306.0998595016. The cubic root of 18542496 is about 264.6809783862.

The spelling of 18542496 in words is "eighteen million, five hundred forty-two thousand, four hundred ninety-six".