3219988820 has 24 divisors (see below), whose sum is σ = 6764754528. Its totient is φ = 1287466400.

The previous prime is 3219988801. The next prime is 3219988829. The reversal of 3219988820 is 288899123.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3219988829) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18815 + ... + 82425.

It is an arithmetic number, because the mean of its divisors is an integer number (281864772).

Almost surely, 2^3219988820 is an apocalyptic number.

It is an amenable number.

3219988820 is an abundant number, since it is smaller than the sum of its proper divisors (3544765708).

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

3219988820 is a wasteful number, since it uses less digits than its factorization.

3219988820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66151 (or 66149 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 50.

The square root of 3219988820 is about 56744.9453255530. The cubic root of 3219988820 is about 1476.6745428998.

The spelling of 3219988820 in words is "three billion, two hundred nineteen million, nine hundred eighty-eight thousand, eight hundred twenty".