231406752 has 48 divisors (see below), whose sum is σ = 610545600. Its totient is φ = 76741632.

The previous prime is 231406741. The next prime is 231406753. The reversal of 231406752 is 257604132.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (231406753) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13048 + ... + 25160.

It is an arithmetic number, because the mean of its divisors is an integer number (12719700).

Almost surely, 2^231406752 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231406752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (305272800).

231406752 is an abundant number, since it is smaller than the sum of its proper divisors (379138848).

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

231406752 is a wasteful number, since it uses less digits than its factorization.

231406752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12325 (or 12317 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 231406752 is about 15212.0594266523. The cubic root of 231406752 is about 613.9391692787.

It can be divided in two parts, 23140 and 6752, that added together give a palindrome (29892).

The spelling of 231406752 in words is "two hundred thirty-one million, four hundred six thousand, seven hundred fifty-two".