3289357820 has 24 divisors (see below), whose sum is σ = 7894459104. Its totient is φ = 1127779776.

The previous prime is 3289357789. The next prime is 3289357849. The reversal of 3289357820 is 287539823.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11747567 + ... + 11747846.

It is an arithmetic number, because the mean of its divisors is an integer number (328935796).

Almost surely, 2^3289357820 is an apocalyptic number.

It is an amenable number.

3289357820 is an abundant number, since it is smaller than the sum of its proper divisors (4605101284).

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

3289357820 is a wasteful number, since it uses less digits than its factorization.

3289357820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23495429 (or 23495427 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 47.

The square root of 3289357820 is about 57352.9233779761. The cubic root of 3289357820 is about 1487.2034116210.

The spelling of 3289357820 in words is "three billion, two hundred eighty-nine million, three hundred fifty-seven thousand, eight hundred twenty".