2622728 has 16 divisors (see below), whose sum is σ = 4955580. Its totient is φ = 1301248.

The previous prime is 2622707. The next prime is 2622733. The reversal of 2622728 is 8272262.

It can be written as a sum of positive squares in 2 ways, for example, as 2427364 + 195364 = 1558^2 + 442^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2622728.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101 + ... + 2292.

2^2622728 is an apocalyptic number.

It is an amenable number.

2622728 is a deficient number, since it is larger than the sum of its proper divisors (2332852).

2622728 is a wasteful number, since it uses less digits than its factorization.

2622728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2536 (or 2532 counting only the distinct ones).

The product of its digits is 5376, while the sum is 29.

The square root of 2622728 is about 1619.4838683976. The cubic root of 2622728 is about 137.9063987553.

It can be divided in two parts, 262272 and 8, that multiplied together give a triangular number (2098176 = T₂₀₄₈).

The spelling of 2622728 in words is "two million, six hundred twenty-two thousand, seven hundred twenty-eight".