18741814 has 48 divisors (see below), whose sum is σ = 36082368. Its totient is φ = 7233408.

The previous prime is 18741781. The next prime is 18741839. The reversal of 18741814 is 41814781.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 18741814.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 59722 + ... + 60034.

It is an arithmetic number, because the mean of its divisors is an integer number (751716).

Almost surely, 2^18741814 is an apocalyptic number.

18741814 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

18741814 is a deficient number, since it is larger than the sum of its proper divisors (17340554).

18741814 is a wasteful number, since it uses less digits than its factorization.

18741814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389 (or 382 counting only the distinct ones).

The product of its digits is 7168, while the sum is 34.

The square root of 18741814 is about 4329.1816778694. The cubic root of 18741814 is about 265.6259747877.

The spelling of 18741814 in words is "eighteen million, seven hundred forty-one thousand, eight hundred fourteen".