3506880020 has 96 divisors (see below), whose sum is σ = 9093772800. Its totient is φ = 1131594240.

The previous prime is 3506880011. The next prime is 3506880023. The reversal of 3506880020 is 200886053.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3506880023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 101585 + ... + 131655.

It is an arithmetic number, because the mean of its divisors is an integer number (94726800).

Almost surely, 2^3506880020 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 3506880020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4546886400).

3506880020 is an abundant number, since it is smaller than the sum of its proper divisors (5586892780).

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

3506880020 is a wasteful number, since it uses less digits than its factorization.

3506880020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30118 (or 30102 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 3506880020 is about 59218.9160657302. The cubic root of 3506880020 is about 1519.2886820640.

The spelling of 3506880020 in words is "three billion, five hundred six million, eight hundred eighty thousand, twenty".