18738414 has 24 divisors (see below), whose sum is σ = 40687920. Its totient is φ = 6232608.

The previous prime is 18738373. The next prime is 18738439. The reversal of 18738414 is 41483781.

It is a super-2 number, since 2×18738414² = 702256318470792, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10842 + ... + 12450.

It is an arithmetic number, because the mean of its divisors is an integer number (1695330).

Almost surely, 2^18738414 is an apocalyptic number.

18738414 is an abundant number, since it is smaller than the sum of its proper divisors (21949506).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18738414 is a wasteful number, since it uses less digits than its factorization.

18738414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2264 (or 2261 counting only the distinct ones).

The product of its digits is 21504, while the sum is 36.

The square root of 18738414 is about 4328.7889761456. The cubic root of 18738414 is about 265.6099111890.

The spelling of 18738414 in words is "eighteen million, seven hundred thirty-eight thousand, four hundred fourteen".