232288440 has 128 divisors (see below), whose sum is σ = 715392000. Its totient is φ = 60323328.

The previous prime is 232288439. The next prime is 232288457. The reversal of 232288440 is 44882232.

232288440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1014246 + ... + 1014474.

It is an arithmetic number, because the mean of its divisors is an integer number (5589000).

Almost surely, 2^232288440 is an apocalyptic number.

232288440 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 232288440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (357696000).

232288440 is an abundant number, since it is smaller than the sum of its proper divisors (483103560).

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

232288440 is a wasteful number, since it uses less digits than its factorization.

232288440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429 (or 425 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 33.

The square root of 232288440 is about 15241.0117774379. The cubic root of 232288440 is about 614.7179088336.

The spelling of 232288440 in words is "two hundred thirty-two million, two hundred eighty-eight thousand, four hundred forty".