232747840 has 56 divisors (see below), whose sum is σ = 596874600. Its totient is φ = 85936128.

The previous prime is 232747811. The next prime is 232747843. The reversal of 232747840 is 48747232.

It can be written as a sum of positive squares in 4 ways, for example, as 2304 + 232745536 = 48^2 + 15256^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 232747840.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232747843) 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, 23815 + ... + 32134.

It is an arithmetic number, because the mean of its divisors is an integer number (10658475).

Almost surely, 2^232747840 is an apocalyptic number.

232747840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

232747840 is an abundant number, since it is smaller than the sum of its proper divisors (364126760).

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

232747840 is a wasteful number, since it uses less digits than its factorization.

232747840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55979 (or 55969 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 37.

The square root of 232747840 is about 15256.0755110874. The cubic root of 232747840 is about 615.1228872904.

The spelling of 232747840 in words is "two hundred thirty-two million, seven hundred forty-seven thousand, eight hundred forty".