18468492 has 60 divisors (see below), whose sum is σ = 50350776. Its totient is φ = 5268480.

The previous prime is 18468487. The next prime is 18468497. The reversal of 18468492 is 29486481.

It is an interprime number because it is at equal distance from previous prime (18468487) and next prime (18468497).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (18468497) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 28492 + ... + 29132.

Almost surely, 2^18468492 is an apocalyptic number.

18468492 is a gapful number since it is divisible by the number (12) 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 18468492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25175388).

18468492 is an abundant number, since it is smaller than the sum of its proper divisors (31882284).

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

18468492 is an equidigital number, since it uses as much as digits as its factorization.

18468492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 676 (or 653 counting only the distinct ones).

The product of its digits is 110592, while the sum is 42.

The square root of 18468492 is about 4297.4983420590. The cubic root of 18468492 is about 264.3283907013.

The spelling of 18468492 in words is "eighteen million, four hundred sixty-eight thousand, four hundred ninety-two".