18814299 has 16 divisors (see below), whose sum is σ = 29916672. Its totient is φ = 10283328.

The previous prime is 18814297. The next prime is 18814307. The reversal of 18814299 is 99241881.

It is not a de Polignac number, because 18814299 - 2¹ = 18814297 is a prime.

It is a super-2 number, since 2×18814299² = 707955693722802, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 18814299.

It is not an unprimeable number, because it can be changed into a prime (18814297) 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, 18994 + ... + 19959.

It is an arithmetic number, because the mean of its divisors is an integer number (1869792).

Almost surely, 2^18814299 is an apocalyptic number.

18814299 is a deficient number, since it is larger than the sum of its proper divisors (11102373).

18814299 is a wasteful number, since it uses less digits than its factorization.

18814299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38986.

The product of its digits is 41472, while the sum is 42.

The square root of 18814299 is about 4337.5452735389. The cubic root of 18814299 is about 265.9679753030.

The spelling of 18814299 in words is "eighteen million, eight hundred fourteen thousand, two hundred ninety-nine".