231847920 has 200 divisors, whose sum is σ = 827860704. Its totient is φ = 60092928.

The previous prime is 231847919. The next prime is 231847933. The reversal of 231847920 is 29748132.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

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 39 ways as a sum of consecutive naturals, for example, 239277 + ... + 240243.

Almost surely, 2^231847920 is an apocalyptic number.

231847920 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 231847920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (413930352).

231847920 is an abundant number, since it is smaller than the sum of its proper divisors (596012784).

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

231847920 is a wasteful number, since it uses less digits than its factorization.

231847920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1029 (or 1014 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 231847920 is about 15226.5531227524. The cubic root of 231847920 is about 614.3290720124.

The spelling of 231847920 in words is "two hundred thirty-one million, eight hundred forty-seven thousand, nine hundred twenty".