18775030 has 8 divisors (see below), whose sum is σ = 33795072. Its totient is φ = 7510008.

The previous prime is 18774997. The next prime is 18775033. The reversal of 18775030 is 3057781.

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

It is a junction number, because it is equal to n+sod(n) for n = 18774983 and 18775001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18775033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 938742 + ... + 938761.

It is an arithmetic number, because the mean of its divisors is an integer number (4224384).

Almost surely, 2^18775030 is an apocalyptic number.

18775030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18775030 is a deficient number, since it is larger than the sum of its proper divisors (15020042).

18775030 is a wasteful number, since it uses less digits than its factorization.

18775030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1877510.

The product of its (nonzero) digits is 5880, while the sum is 31.

The square root of 18775030 is about 4333.0162704518. The cubic root of 18775030 is about 265.7828045938.

The spelling of 18775030 in words is "eighteen million, seven hundred seventy-five thousand, thirty".