231723384 has 64 divisors (see below), whose sum is σ = 596211840. Its totient is φ = 75020160.

The previous prime is 231723383. The next prime is 231723403. The reversal of 231723384 is 483327132.

It is a super-2 number, since 2×231723384² = 107391453384822912, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231723383) 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 15 ways as a sum of consecutive naturals, for example, 120559 + ... + 122465.

It is an arithmetic number, because the mean of its divisors is an integer number (9315810).

Almost surely, 2^231723384 is an apocalyptic number.

231723384 is a gapful number since it is divisible by the number (24) 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 231723384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (298105920).

231723384 is an abundant number, since it is smaller than the sum of its proper divisors (364488456).

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

231723384 is a wasteful number, since it uses less digits than its factorization.

231723384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2060 (or 2056 counting only the distinct ones).

The product of its digits is 24192, while the sum is 33.

The square root of 231723384 is about 15222.4631384017. The cubic root of 231723384 is about 614.2190576724.

The spelling of 231723384 in words is "two hundred thirty-one million, seven hundred twenty-three thousand, three hundred eighty-four".