232720140 has 72 divisors (see below), whose sum is σ = 692253072. Its totient is φ = 58403840.

The previous prime is 232720139. The next prime is 232720177. The reversal of 232720140 is 41027232.

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, 10630 + ... + 24050.

It is an arithmetic number, because the mean of its divisors is an integer number (9614626).

Almost surely, 2^232720140 is an apocalyptic number.

232720140 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 232720140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (346126536).

232720140 is an abundant number, since it is smaller than the sum of its proper divisors (459532932).

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

232720140 is a wasteful number, since it uses less digits than its factorization.

232720140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13467 (or 13448 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 232720140 is about 15255.1676490296. The cubic root of 232720140 is about 615.0984837987.

Adding to 232720140 its reverse (41027232), we get a palindrome (273747372).

The spelling of 232720140 in words is "two hundred thirty-two million, seven hundred twenty thousand, one hundred forty".