231869460 has 96 divisors (see below), whose sum is σ = 709696512. Its totient is φ = 56309760.

The previous prime is 231869441. The next prime is 231869467. The reversal of 231869460 is 64968132.

231869460 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231869467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27954 + ... + 35286.

It is an arithmetic number, because the mean of its divisors is an integer number (7392672).

Almost surely, 2^231869460 is an apocalyptic number.

231869460 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 231869460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (354848256).

231869460 is an abundant number, since it is smaller than the sum of its proper divisors (477827052).

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

231869460 is a wasteful number, since it uses less digits than its factorization.

231869460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7393 (or 7391 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 231869460 is about 15227.2604233329. The cubic root of 231869460 is about 614.3480963200.

The spelling of 231869460 in words is "two hundred thirty-one million, eight hundred sixty-nine thousand, four hundred sixty".