3240605920 has 24 divisors (see below), whose sum is σ = 7655931864. Its totient is φ = 1296242304.

The previous prime is 3240605911. The next prime is 3240605939. The reversal of 3240605920 is 295060423.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10126734 + ... + 10127053.

It is an arithmetic number, because the mean of its divisors is an integer number (318997161).

Almost surely, 2^3240605920 is an apocalyptic number.

It is an amenable number.

3240605920 is an abundant number, since it is smaller than the sum of its proper divisors (4415325944).

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

3240605920 is a wasteful number, since it uses less digits than its factorization.

3240605920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20253802 (or 20253794 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 3240605920 is about 56926.3200988787. The cubic root of 3240605920 is about 1479.8194812697.

The spelling of 3240605920 in words is "three billion, two hundred forty million, six hundred five thousand, nine hundred twenty".