2728774746 has 24 divisors (see below), whose sum is σ = 5913378900. Its totient is φ = 909432576.

The previous prime is 2728774733. The next prime is 2728774757. The reversal of 2728774746 is 6474778272.

It can be written as a sum of positive squares in 2 ways, for example, as 2726406225 + 2368521 = 52215^2 + 1539^2 .

It is a super-2 number, since 2×2728774746² = 14892423228814729032, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2728774692 and 2728774701.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 141280 + ... + 159428.

Almost surely, 2^2728774746 is an apocalyptic number.

2728774746 is an abundant number, since it is smaller than the sum of its proper divisors (3184604154).

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

2728774746 is a wasteful number, since it uses less digits than its factorization.

2728774746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26510 (or 26507 counting only the distinct ones).

The product of its digits is 7375872, while the sum is 54.

The square root of 2728774746 is about 52237.6755417007. The cubic root of 2728774746 is about 1397.4058672540.

The spelling of 2728774746 in words is "two billion, seven hundred twenty-eight million, seven hundred seventy-four thousand, seven hundred forty-six".