18494124 has 72 divisors (see below), whose sum is σ = 48620544. Its totient is φ = 5464800.

The previous prime is 18494123. The next prime is 18494131. The reversal of 18494124 is 42149481.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18494123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 68109 + ... + 68379.

Almost surely, 2^18494124 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18494124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24310272).

18494124 is an abundant number, since it is smaller than the sum of its proper divisors (30126420).

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

18494124 is a wasteful number, since it uses less digits than its factorization.

18494124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347 (or 334 counting only the distinct ones).

The product of its digits is 9216, while the sum is 33.

The square root of 18494124 is about 4300.4795081479. The cubic root of 18494124 is about 264.4506192931.

The spelling of 18494124 in words is "eighteen million, four hundred ninety-four thousand, one hundred twenty-four".