2809074672 has 120 divisors (see below), whose sum is σ = 8230330368. Its totient is φ = 893289600.

The previous prime is 2809074661. The next prime is 2809074689. The reversal of 2809074672 is 2764709082.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 312513 + ... + 321375.

Almost surely, 2^2809074672 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 2809074672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4115165184).

2809074672 is an abundant number, since it is smaller than the sum of its proper divisors (5421255696).

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

2809074672 is a wasteful number, since it uses less digits than its factorization.

2809074672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8979 (or 8970 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The square root of 2809074672 is about 53000.7044481486. The cubic root of 2809074672 is about 1410.9807692745.

The spelling of 2809074672 in words is "two billion, eight hundred nine million, seventy-four thousand, six hundred seventy-two".