230990280 has 64 divisors (see below), whose sum is σ = 695822400. Its totient is φ = 61344000.

The previous prime is 230990257. The next prime is 230990317. The reversal of 230990280 is 82099032.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26286 + ... + 33954.

It is an arithmetic number, because the mean of its divisors is an integer number (10872225).

Almost surely, 2^230990280 is an apocalyptic number.

230990280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 230990280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (347911200).

230990280 is an abundant number, since it is smaller than the sum of its proper divisors (464832120).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

230990280 is a wasteful number, since it uses less digits than its factorization.

230990280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7934 (or 7930 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 230990280 is about 15198.3643856831. The cubic root of 230990280 is about 613.5706377989.

The spelling of 230990280 in words is "two hundred thirty million, nine hundred ninety thousand, two hundred eighty".