18830045 has 32 divisors (see below), whose sum is σ = 26073600. Its totient is φ = 12939264.

The previous prime is 18830041. The next prime is 18830047. The reversal of 18830045 is 54003881.

It is not a de Polignac number, because 18830045 - 2² = 18830041 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18830041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 97469 + ... + 97661.

It is an arithmetic number, because the mean of its divisors is an integer number (814800).

Almost surely, 2^18830045 is an apocalyptic number.

It is an amenable number.

18830045 is a deficient number, since it is larger than the sum of its proper divisors (7243555).

18830045 is a wasteful number, since it uses less digits than its factorization.

18830045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309.

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 18830045 is about 4339.3599758490. The cubic root of 18830045 is about 266.0421522887.

The spelling of 18830045 in words is "eighteen million, eight hundred thirty thousand, forty-five".