231400330 has 16 divisors (see below), whose sum is σ = 476023680. Its totient is φ = 79337232.

The previous prime is 231400321. The next prime is 231400349. The reversal of 231400330 is 33004132.

It is a super-2 number, since 2×231400330² = 107092225448217800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1652790 + ... + 1652929.

It is an arithmetic number, because the mean of its divisors is an integer number (29751480).

Almost surely, 2^231400330 is an apocalyptic number.

231400330 is an abundant number, since it is smaller than the sum of its proper divisors (244623350).

231400330 is a wasteful number, since it uses less digits than its factorization.

231400330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3305733.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 231400330 is about 15211.8483426571. The cubic root of 231400330 is about 613.9334898797.

Adding to 231400330 its reverse (33004132), we get a palindrome (264404462).

The spelling of 231400330 in words is "two hundred thirty-one million, four hundred thousand, three hundred thirty".