18197414 has 8 divisors (see below), whose sum is σ = 28033968. Its totient is φ = 8852760.

The previous prime is 18197411. The next prime is 18197419. The reversal of 18197414 is 41479181.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×18197414² = 662291752574792, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18197411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122882 + ... + 123029.

It is an arithmetic number, because the mean of its divisors is an integer number (3504246).

Almost surely, 2^18197414 is an apocalyptic number.

18197414 is a deficient number, since it is larger than the sum of its proper divisors (9836554).

18197414 is a wasteful number, since it uses less digits than its factorization.

18197414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245950.

The product of its digits is 8064, while the sum is 35.

The square root of 18197414 is about 4265.8427068986. The cubic root of 18197414 is about 263.0287525129.

The spelling of 18197414 in words is "eighteen million, one hundred ninety-seven thousand, four hundred fourteen".