18030790 has 8 divisors (see below), whose sum is σ = 32455440. Its totient is φ = 7212312.

The previous prime is 18030767. The next prime is 18030811. The reversal of 18030790 is 9703081.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 901530 + ... + 901549.

It is an arithmetic number, because the mean of its divisors is an integer number (4056930).

Almost surely, 2^18030790 is an apocalyptic number.

18030790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18030790 is a deficient number, since it is larger than the sum of its proper divisors (14424650).

18030790 is a wasteful number, since it uses less digits than its factorization.

18030790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1803086.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 18030790 is about 4246.2677729978. The cubic root of 18030790 is about 262.2234850903.

The spelling of 18030790 in words is "eighteen million, thirty thousand, seven hundred ninety".