232840560 has 80 divisors (see below), whose sum is σ = 728631936. Its totient is φ = 61503744.

The previous prime is 232840549. The next prime is 232840561. The reversal of 232840560 is 65048232.

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

It is a super-2 number, since 2×232840560² = 108429452762227200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232840561) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21147 + ... + 30213.

Almost surely, 2^232840560 is an apocalyptic number.

232840560 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 232840560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (364315968).

232840560 is an abundant number, since it is smaller than the sum of its proper divisors (495791376).

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

232840560 is a wasteful number, since it uses less digits than its factorization.

232840560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9190 (or 9184 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 232840560 is about 15259.1139978703. The cubic root of 232840560 is about 615.2045588285.

Adding to 232840560 its reverse (65048232), we get a palindrome (297888792).

The spelling of 232840560 in words is "two hundred thirty-two million, eight hundred forty thousand, five hundred sixty".