231862240 has 48 divisors (see below), whose sum is σ = 549188640. Its totient is φ = 92505600.

The previous prime is 231862229. The next prime is 231862247. The reversal of 231862240 is 42268132.

It is a junction number, because it is equal to n+sod(n) for n = 231862199 and 231862208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231862247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68590 + ... + 71890.

It is an arithmetic number, because the mean of its divisors is an integer number (11441430).

Almost surely, 2^231862240 is an apocalyptic number.

231862240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231862240 is an abundant number, since it is smaller than the sum of its proper divisors (317326400).

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

231862240 is a wasteful number, since it uses less digits than its factorization.

231862240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3755 (or 3747 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 231862240 is about 15227.0233466689. The cubic root of 231862240 is about 614.3417196871.

The spelling of 231862240 in words is "two hundred thirty-one million, eight hundred sixty-two thousand, two hundred forty".