18030057 has 8 divisors (see below), whose sum is σ = 24108480. Its totient is φ = 11985840.

The previous prime is 18030053. The next prime is 18030059. The reversal of 18030057 is 75003081.

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

It is not a de Polignac number, because 18030057 - 2² = 18030053 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18030053) 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 7 ways as a sum of consecutive naturals, for example, 7294 + ... + 9447.

It is an arithmetic number, because the mean of its divisors is an integer number (3013560).

Almost surely, 2^18030057 is an apocalyptic number.

It is an amenable number.

18030057 is a deficient number, since it is larger than the sum of its proper divisors (6078423).

18030057 is a wasteful number, since it uses less digits than its factorization.

18030057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17103.

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 18030057 is about 4246.1814610306. The cubic root of 18030057 is about 262.2199316793.

The spelling of 18030057 in words is "eighteen million, thirty thousand, fifty-seven".