18880230 has 16 divisors (see below), whose sum is σ = 45312624. Its totient is φ = 5034720.

The previous prime is 18880219. The next prime is 18880241. The reversal of 18880230 is 3208881.

It is an interprime number because it is at equal distance from previous prime (18880219) and next prime (18880241).

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 629341 = 18880230 / (1 + 8 + 8 + 8 + 0 + 2 + 3 + 0).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 314641 + ... + 314700.

It is an arithmetic number, because the mean of its divisors is an integer number (2832039).

Almost surely, 2^18880230 is an apocalyptic number.

18880230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18880230 is an abundant number, since it is smaller than the sum of its proper divisors (26432394).

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

18880230 is a wasteful number, since it uses less digits than its factorization.

18880230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629351.

The product of its (nonzero) digits is 3072, while the sum is 30.

The square root of 18880230 is about 4345.1386629197. The cubic root of 18880230 is about 266.2782905423.

It can be divided in two parts, 18880 and 230, that added together give a triangular number (19110 = T₁₉₅).

The spelling of 18880230 in words is "eighteen million, eight hundred eighty thousand, two hundred thirty".