3291830240 has 24 divisors (see below), whose sum is σ = 7776949320. Its totient is φ = 1316732032.

The previous prime is 3291830209. The next prime is 3291830293. The reversal of 3291830240 is 420381923.

It is a happy number.

It is a super-2 number, since 2×3291830240² = 21672292657956915200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 3291830197 and 3291830206.

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, 10286810 + ... + 10287129.

It is an arithmetic number, because the mean of its divisors is an integer number (324039555).

Almost surely, 2^3291830240 is an apocalyptic number.

It is an amenable number.

3291830240 is an abundant number, since it is smaller than the sum of its proper divisors (4485119080).

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

3291830240 is a wasteful number, since it uses less digits than its factorization.

3291830240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20573954 (or 20573946 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 3291830240 is about 57374.4737666499. The cubic root of 3291830240 is about 1487.5759332280.

The spelling of 3291830240 in words is "three billion, two hundred ninety-one million, eight hundred thirty thousand, two hundred forty".