18132030 has 96 divisors (see below), whose sum is σ = 57081024. Its totient is φ = 3898368.

The previous prime is 18132029. The next prime is 18132031. The reversal of 18132030 is 3023181.

It is an interprime number because it is at equal distance from previous prime (18132029) and next prime (18132031).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 18131994 and 18132012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18132031) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9864 + ... + 11556.

It is an arithmetic number, because the mean of its divisors is an integer number (594594).

Almost surely, 2^18132030 is an apocalyptic number.

18132030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 18132030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28540512).

18132030 is an abundant number, since it is smaller than the sum of its proper divisors (38948994).

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

18132030 is a wasteful number, since it uses less digits than its factorization.

18132030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1730 (or 1727 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 18132030 is about 4258.1721430680. The cubic root of 18132030 is about 262.7133503592.

The spelling of 18132030 in words is "eighteen million, one hundred thirty-two thousand, thirty".