28050772 has 12 divisors (see below), whose sum is σ = 50781780. Its totient is φ = 13541696.

The previous prime is 28050769. The next prime is 28050811. The reversal of 28050772 is 27705082.

It can be written as a sum of positive squares in 2 ways, for example, as 13883076 + 14167696 = 3726^2 + 3764^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120793 + ... + 121024.

It is an arithmetic number, because the mean of its divisors is an integer number (4231815).

Almost surely, 2^28050772 is an apocalyptic number.

It is an amenable number.

28050772 is a deficient number, since it is larger than the sum of its proper divisors (22731008).

28050772 is a wasteful number, since it uses less digits than its factorization.

28050772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241850 (or 241848 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 31.

The square root of 28050772 is about 5296.2979523437. The cubic root of 28050772 is about 303.8423264757.

The spelling of 28050772 in words is "twenty-eight million, fifty thousand, seven hundred seventy-two".