3243640000 has 140 divisors (see below), whose sum is σ = 8148410424. Its totient is φ = 1280512000.

The previous prime is 3243639983. The next prime is 3243640061. The reversal of 3243640000 is 463423.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3319512 + ... + 3320488.

Almost surely, 2^3243640000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3243640000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4074205212).

3243640000 is an abundant number, since it is smaller than the sum of its proper divisors (4904770424).

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

3243640000 is an frugal number, since it uses more digits than its factorization.

3243640000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1092 (or 1067 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 3243640000 is about 56952.9630484666. The cubic root of 3243640000 is about 1480.2811737517.

The spelling of 3243640000 in words is "three billion, two hundred forty-three million, six hundred forty thousand".