18412814 has 16 divisors (see below), whose sum is σ = 32237568. Its totient is φ = 7723032.

The previous prime is 18412777. The next prime is 18412817. The reversal of 18412814 is 41821481.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18412817) 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, 13334 + ... + 14649.

It is an arithmetic number, because the mean of its divisors is an integer number (2014848).

Almost surely, 2^18412814 is an apocalyptic number.

18412814 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

18412814 is a deficient number, since it is larger than the sum of its proper divisors (13824754).

18412814 is a wasteful number, since it uses less digits than its factorization.

18412814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28039.

The product of its digits is 2048, while the sum is 29.

The square root of 18412814 is about 4291.0154975250. The cubic root of 18412814 is about 264.0624947703.

The spelling of 18412814 in words is "eighteen million, four hundred twelve thousand, eight hundred fourteen".