230289140 has 24 divisors (see below), whose sum is σ = 512055432. Its totient is φ = 86696960.

The previous prime is 230289113. The next prime is 230289161. The reversal of 230289140 is 41982032.

It can be written as a sum of positive squares in 4 ways, for example, as 93586276 + 136702864 = 9674^2 + 11692^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 338321 + ... + 339000.

It is an arithmetic number, because the mean of its divisors is an integer number (21335643).

Almost surely, 2^230289140 is an apocalyptic number.

230289140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

230289140 is an abundant number, since it is smaller than the sum of its proper divisors (281766292).

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

230289140 is a wasteful number, since it uses less digits than its factorization.

230289140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 677347 (or 677345 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 230289140 is about 15175.2805575383. The cubic root of 230289140 is about 612.9492048353.

The spelling of 230289140 in words is "two hundred thirty million, two hundred eighty-nine thousand, one hundred forty".