232445440 has 160 divisors (see below), whose sum is σ = 601032960. Its totient is φ = 86016000.

The previous prime is 232445431. The next prime is 232445459. The reversal of 232445440 is 44544232.

It is a tau number, because it is divible by the number of its divisors (160).

It is a junction number, because it is equal to n+sod(n) for n = 232445399 and 232445408.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2301390 + ... + 2301490.

It is an arithmetic number, because the mean of its divisors is an integer number (3756456).

Almost surely, 2^232445440 is an apocalyptic number.

232445440 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 232445440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (300516480).

232445440 is an abundant number, since it is smaller than the sum of its proper divisors (368587520).

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

232445440 is a wasteful number, since it uses less digits than its factorization.

232445440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184 (or 168 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 28.

The square root of 232445440 is about 15246.1614841245. The cubic root of 232445440 is about 614.8563702748.

Adding to 232445440 its reverse (44544232), we get a palindrome (276989672).

The spelling of 232445440 in words is "two hundred thirty-two million, four hundred forty-five thousand, four hundred forty".