232540020 has 72 divisors (see below), whose sum is σ = 720405504. Its totient is φ = 60689088.

The previous prime is 232540013. The next prime is 232540043. The reversal of 232540020 is 20045232.

232540020 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 232539975 and 232540002.

It is a congruent number.

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, 5284 + ... + 22203.

It is an arithmetic number, because the mean of its divisors is an integer number (10005632).

Almost surely, 2^232540020 is an apocalyptic number.

232540020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

232540020 is an abundant number, since it is smaller than the sum of its proper divisors (487865484).

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

232540020 is a wasteful number, since it uses less digits than its factorization.

232540020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27549 (or 27544 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 232540020 is about 15249.2629330076. The cubic root of 232540020 is about 614.9397521786.

Adding to 232540020 its reverse (20045232), we get a palindrome (252585252).

The spelling of 232540020 in words is "two hundred thirty-two million, five hundred forty thousand, twenty".