232120440 has 96 divisors (see below), whose sum is σ = 760481280. Its totient is φ = 61399296.

The previous prime is 232120429. The next prime is 232120453. The reversal of 232120440 is 44021232.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43182 + ... + 48258.

It is an arithmetic number, because the mean of its divisors is an integer number (7921680).

Almost surely, 2^232120440 is an apocalyptic number.

232120440 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 232120440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (380240640).

232120440 is an abundant number, since it is smaller than the sum of its proper divisors (528360840).

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

232120440 is a wasteful number, since it uses less digits than its factorization.

232120440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5221 (or 5214 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 232120440 is about 15235.4993354337. The cubic root of 232120440 is about 614.5696771558.

Adding to 232120440 its reverse (44021232), we get a palindrome (276141672).

The spelling of 232120440 in words is "two hundred thirty-two million, one hundred twenty thousand, four hundred forty".