18408030 has 32 divisors (see below), whose sum is σ = 44323200. Its totient is φ = 4892832.

The previous prime is 18408023. The next prime is 18408037. The reversal of 18408030 is 3080481.

It is an interprime number because it is at equal distance from previous prime (18408023) and next prime (18408037).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18408037) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10561 + ... + 12179.

It is an arithmetic number, because the mean of its divisors is an integer number (1385100).

Almost surely, 2^18408030 is an apocalyptic number.

18408030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18408030 is an abundant number, since it is smaller than the sum of its proper divisors (25915170).

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

18408030 is a wasteful number, since it uses less digits than its factorization.

18408030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2008.

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 18408030 is about 4290.4580175082. The cubic root of 18408030 is about 264.0396232997.

It can be divided in two parts, 1840 and 8030, that added together give a triangular number (9870 = T₁₄₀).

The spelling of 18408030 in words is "eighteen million, four hundred eight thousand, thirty".