18716148 has 72 divisors (see below), whose sum is σ = 52118976. Its totient is φ = 5616000.

The previous prime is 18716143. The next prime is 18716153. The reversal of 18716148 is 84161781.

It is an interprime number because it is at equal distance from previous prime (18716143) and next prime (18716153).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18716141) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 59640 + ... + 59952.

Almost surely, 2^18716148 is an apocalyptic number.

18716148 is a gapful number since it is divisible by the number (18) 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 18716148, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26059488).

18716148 is an abundant number, since it is smaller than the sum of its proper divisors (33402828).

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

18716148 is a wasteful number, since it uses less digits than its factorization.

18716148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485 (or 480 counting only the distinct ones).

The product of its digits is 10752, while the sum is 36.

The square root of 18716148 is about 4326.2163607476. The cubic root of 18716148 is about 265.5046654569.

The spelling of 18716148 in words is "eighteen million, seven hundred sixteen thousand, one hundred forty-eight".