232207440 has 80 divisors (see below), whose sum is σ = 728578368. Its totient is φ = 61170688.

The previous prime is 232207397. The next prime is 232207463. The reversal of 232207440 is 44702232.

232207440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 232207440.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14092 + ... + 25748.

Almost surely, 2^232207440 is an apocalyptic number.

232207440 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 232207440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (364289184).

232207440 is an abundant number, since it is smaller than the sum of its proper divisors (496370928).

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

232207440 is a wasteful number, since it uses less digits than its factorization.

232207440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11756 (or 11750 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 24.

The square root of 232207440 is about 15238.3542418465. The cubic root of 232207440 is about 614.6464489146.

Adding to 232207440 its reverse (44702232), we get a palindrome (276909672).

The spelling of 232207440 in words is "two hundred thirty-two million, two hundred seven thousand, four hundred forty".