18749230 has 8 divisors (see below), whose sum is σ = 33748632. Its totient is φ = 7499688.

The previous prime is 18749207. The next prime is 18749231. The reversal of 18749230 is 3294781.

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

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18749231) 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, 937452 + ... + 937471.

It is an arithmetic number, because the mean of its divisors is an integer number (4218579).

Almost surely, 2^18749230 is an apocalyptic number.

18749230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18749230 is a deficient number, since it is larger than the sum of its proper divisors (14999402).

18749230 is a wasteful number, since it uses less digits than its factorization.

18749230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1874930.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 18749230 is about 4330.0381060679. The cubic root of 18749230 is about 265.6610055921.

The spelling of 18749230 in words is "eighteen million, seven hundred forty-nine thousand, two hundred thirty".