230940040 has 16 divisors (see below), whose sum is σ = 519615180. Its totient is φ = 92376000.

The previous prime is 230940029. The next prime is 230940043. The reversal of 230940040 is 40049032.

It can be written as a sum of positive squares in 2 ways, for example, as 228070404 + 2869636 = 15102^2 + 1694^2 .

It is a junction number, because it is equal to n+sod(n) for n = 230939993 and 230940020.

It is not an unprimeable number, because it can be changed into a prime (230940043) 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, 2886711 + ... + 2886790.

Almost surely, 2^230940040 is an apocalyptic number.

230940040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

230940040 is an abundant number, since it is smaller than the sum of its proper divisors (288675140).

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

230940040 is a wasteful number, since it uses less digits than its factorization.

230940040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5773512 (or 5773508 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 230940040 is about 15196.7114863710. The cubic root of 230940040 is about 613.5261510440.

Adding to 230940040 its reverse (40049032), we get a palindrome (270989072).

The spelling of 230940040 in words is "two hundred thirty million, nine hundred forty thousand, forty".