3240639460 has 48 divisors (see below), whose sum is σ = 6860399616. Its totient is φ = 1285805952.

The previous prime is 3240639371. The next prime is 3240639461. The reversal of 3240639460 is 649360423.

It is not an unprimeable number, because it can be changed into a prime (3240639461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2099449 + ... + 2100991.

It is an arithmetic number, because the mean of its divisors is an integer number (142924992).

Almost surely, 2^3240639460 is an apocalyptic number.

It is an amenable number.

3240639460 is an abundant number, since it is smaller than the sum of its proper divisors (3619760156).

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

3240639460 is a wasteful number, since it uses less digits than its factorization.

3240639460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2332 (or 2330 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 37.

The square root of 3240639460 is about 56926.6146894403. The cubic root of 3240639460 is about 1479.8245865880.

Adding to 3240639460 its reverse (649360423), we get a palindrome (3889999883).

The spelling of 3240639460 in words is "three billion, two hundred forty million, six hundred thirty-nine thousand, four hundred sixty".