18814130 has 16 divisors (see below), whose sum is σ = 34781400. Its totient is φ = 7322112.

The previous prime is 18814079. The next prime is 18814141. The reversal of 18814130 is 3141881.

It can be written as a sum of positive squares in 4 ways, for example, as 18395521 + 418609 = 4289^2 + 647^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 18814130.

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, 25055 + ... + 25794.

Almost surely, 2^18814130 is an apocalyptic number.

18814130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18814130 is a deficient number, since it is larger than the sum of its proper divisors (15967270).

18814130 is a wasteful number, since it uses less digits than its factorization.

18814130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50893.

The product of its (nonzero) digits is 768, while the sum is 26.

The square root of 18814130 is about 4337.5257924305. The cubic root of 18814130 is about 265.9671789455.

The spelling of 18814130 in words is "eighteen million, eight hundred fourteen thousand, one hundred thirty".