3240405232 has 20 divisors (see below), whose sum is σ = 6551254800. Its totient is φ = 1549758848.

The previous prime is 3240405221. The next prime is 3240405239. The reversal of 3240405232 is 2325040423.

It is a junction number, because it is equal to n+sod(n) for n = 3240405197 and 3240405206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3240405239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4402357 + ... + 4403092.

It is an arithmetic number, because the mean of its divisors is an integer number (327562740).

Almost surely, 2^3240405232 is an apocalyptic number.

It is an amenable number.

3240405232 is an abundant number, since it is smaller than the sum of its proper divisors (3310849568).

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

3240405232 is a wasteful number, since it uses less digits than its factorization.

3240405232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8805480 (or 8805474 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 25.

The square root of 3240405232 is about 56924.5573720165. The cubic root of 3240405232 is about 1479.7889326470.

Adding to 3240405232 its reverse (2325040423), we get a palindrome (5565445655).

The spelling of 3240405232 in words is "three billion, two hundred forty million, four hundred five thousand, two hundred thirty-two".