18830378 has 8 divisors (see below), whose sum is σ = 32280672. Its totient is φ = 8070156.

The previous prime is 18830377. The next prime is 18830389. The reversal of 18830378 is 87303881.

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

It is not an unprimeable number, because it can be changed into a prime (18830377) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 672500 + ... + 672527.

It is an arithmetic number, because the mean of its divisors is an integer number (4035084).

Almost surely, 2^18830378 is an apocalyptic number.

18830378 is a deficient number, since it is larger than the sum of its proper divisors (13450294).

18830378 is a wasteful number, since it uses less digits than its factorization.

18830378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1345036.

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 18830378 is about 4339.3983453931. The cubic root of 18830378 is about 266.0437205540.

The spelling of 18830378 in words is "eighteen million, eight hundred thirty thousand, three hundred seventy-eight".