18233974 has 12 divisors (see below), whose sum is σ = 30063852. Its totient is φ = 8288060.

The previous prime is 18233951. The next prime is 18234001. The reversal of 18233974 is 47933281.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 37432 + ... + 37915.

It is an arithmetic number, because the mean of its divisors is an integer number (2505321).

Almost surely, 2^18233974 is an apocalyptic number.

18233974 is a deficient number, since it is larger than the sum of its proper divisors (11829878).

18233974 is a wasteful number, since it uses less digits than its factorization.

18233974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75371 (or 75360 counting only the distinct ones).

The product of its digits is 36288, while the sum is 37.

The square root of 18233974 is about 4270.1257592722. The cubic root of 18233974 is about 263.2047829897.

The spelling of 18233974 in words is "eighteen million, two hundred thirty-three thousand, nine hundred seventy-four".