18208834 has 16 divisors (see below), whose sum is σ = 31880448. Its totient is φ = 7637472.

The previous prime is 18208831. The next prime is 18208837. The reversal of 18208834 is 43880281.

It is an interprime number because it is at equal distance from previous prime (18208831) and next prime (18208837).

It is a self number, because there is not a number n which added to its sum of digits gives 18208834.

It is not an unprimeable number, because it can be changed into a prime (18208831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13179 + ... + 14494.

It is an arithmetic number, because the mean of its divisors is an integer number (1992528).

Almost surely, 2^18208834 is an apocalyptic number.

18208834 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

18208834 is a deficient number, since it is larger than the sum of its proper divisors (13671614).

18208834 is a wasteful number, since it uses less digits than its factorization.

18208834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27729.

The product of its (nonzero) digits is 12288, while the sum is 34.

The square root of 18208834 is about 4267.1810367033. The cubic root of 18208834 is about 263.0837632637.

The spelling of 18208834 in words is "eighteen million, two hundred eight thousand, eight hundred thirty-four".