3081297844 has 6 divisors (see below), whose sum is σ = 5392271234. Its totient is φ = 1540648920.

The previous prime is 3081297841. The next prime is 3081297851. The reversal of 3081297844 is 4487921803.

It can be written as a sum of positive squares in only one way, i.e., 1547635600 + 1533662244 = 39340^2 + 39162^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3081297794 and 3081297803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3081297841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 385162227 + ... + 385162234.

Almost surely, 2^3081297844 is an apocalyptic number.

It is an amenable number.

3081297844 is a deficient number, since it is larger than the sum of its proper divisors (2310973390).

3081297844 is a wasteful number, since it uses less digits than its factorization.

3081297844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 770324465 (or 770324463 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 46.

The square root of 3081297844 is about 55509.4392333412. The cubic root of 3081297844 is about 1455.1616033508.

The spelling of 3081297844 in words is "three billion, eighty-one million, two hundred ninety-seven thousand, eight hundred forty-four".