18697374 has 24 divisors (see below), whose sum is σ = 40671072. Its totient is φ = 6207840.

The previous prime is 18697363. The next prime is 18697379. The reversal of 18697374 is 47379681.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18697379) 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 11 ways as a sum of consecutive naturals, for example, 2962 + ... + 6794.

It is an arithmetic number, because the mean of its divisors is an integer number (1694628).

Almost surely, 2^18697374 is an apocalyptic number.

18697374 is an abundant number, since it is smaller than the sum of its proper divisors (21973698).

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

18697374 is a wasteful number, since it uses less digits than its factorization.

18697374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4112 (or 4109 counting only the distinct ones).

The product of its digits is 254016, while the sum is 45.

The square root of 18697374 is about 4324.0460219568. The cubic root of 18697374 is about 265.4158606419.

The spelling of 18697374 in words is "eighteen million, six hundred ninety-seven thousand, three hundred seventy-four".