2628823445 has 24 divisors (see below), whose sum is σ = 3248654472. Its totient is φ = 2042101760.

The previous prime is 2628823429. The next prime is 2628823531. The reversal of 2628823445 is 5443288262.

It can be written as a sum of positive squares in 12 ways, for example, as 1303426609 + 1325396836 = 36103^2 + 36406^2 .

It is not a de Polignac number, because 2628823445 - 2⁴ = 2628823429 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2628823396 and 2628823405.

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, 2159477 + ... + 2160693.

It is an arithmetic number, because the mean of its divisors is an integer number (135360603).

Almost surely, 2^2628823445 is an apocalyptic number.

It is an amenable number.

2628823445 is a deficient number, since it is larger than the sum of its proper divisors (619831027).

2628823445 is a wasteful number, since it uses less digits than its factorization.

2628823445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1561 (or 1520 counting only the distinct ones).

The product of its digits is 737280, while the sum is 44.

The square root of 2628823445 is about 51272.0532551604. The cubic root of 2628823445 is about 1380.1315153314.

The spelling of 2628823445 in words is "two billion, six hundred twenty-eight million, eight hundred twenty-three thousand, four hundred forty-five".