232305540 has 24 divisors (see below), whose sum is σ = 650455680. Its totient is φ = 61948128.

The previous prime is 232305523. The next prime is 232305547. The reversal of 232305540 is 45503232.

232305540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 232305540.

It is not an unprimeable number, because it can be changed into a prime (232305547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1935820 + ... + 1935939.

It is an arithmetic number, because the mean of its divisors is an integer number (27102320).

Almost surely, 2^232305540 is an apocalyptic number.

232305540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

232305540 is an abundant number, since it is smaller than the sum of its proper divisors (418150140).

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

232305540 is a wasteful number, since it uses less digits than its factorization.

232305540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3871771 (or 3871769 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 24.

The square root of 232305540 is about 15241.5727534923. The cubic root of 232305540 is about 614.7329926927.

Adding to 232305540 its reverse (45503232), we get a palindrome (277808772).

The spelling of 232305540 in words is "two hundred thirty-two million, three hundred five thousand, five hundred forty".