18745030 has 8 divisors (see below), whose sum is σ = 33741072. Its totient is φ = 7498008.

The previous prime is 18745007. The next prime is 18745031. The reversal of 18745030 is 3054781.

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

It is a super-2 number, since 2×18745030² = 702752299401800, which contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 18745030.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18745031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 937242 + ... + 937261.

It is an arithmetic number, because the mean of its divisors is an integer number (4217634).

Almost surely, 2^18745030 is an apocalyptic number.

18745030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18745030 is a deficient number, since it is larger than the sum of its proper divisors (14996042).

18745030 is a wasteful number, since it uses less digits than its factorization.

18745030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1874510.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 18745030 is about 4329.5530947201. The cubic root of 18745030 is about 265.6411672743.

The spelling of 18745030 in words is "eighteen million, seven hundred forty-five thousand, thirty".