250830989 has 8 divisors (see below), whose sum is σ = 270473280. Its totient is φ = 231832800.

The previous prime is 250830977. The next prime is 250831003. The reversal of 250830989 is 989038052.

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

It is a cyclic number.

It is not a de Polignac number, because 250830989 - 2²⁰ = 249782413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (250830949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 160217 + ... + 161774.

It is an arithmetic number, because the mean of its divisors is an integer number (33809160).

Almost surely, 2^250830989 is an apocalyptic number.

It is an amenable number.

250830989 is a deficient number, since it is larger than the sum of its proper divisors (19642291).

250830989 is a wasteful number, since it uses less digits than its factorization.

250830989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322051.

The product of its (nonzero) digits is 155520, while the sum is 44.

The square root of 250830989 is about 15837.6446796864. The cubic root of 250830989 is about 630.6577400352.

The spelling of 250830989 in words is "two hundred fifty million, eight hundred thirty thousand, nine hundred eighty-nine".