28022048 has 12 divisors (see below), whose sum is σ = 55168470. Its totient is φ = 14011008.

The previous prime is 28022041. The next prime is 28022051. The reversal of 28022048 is 84022082.

It can be written as a sum of positive squares in only one way, i.e., 26915344 + 1106704 = 5188^2 + 1052^2 .

It is a super-2 number, since 2×28022048² = 1570470348228608, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28022041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 437813 + ... + 437876.

Almost surely, 2^28022048 is an apocalyptic number.

It is an amenable number.

28022048 is a deficient number, since it is larger than the sum of its proper divisors (27146422).

28022048 is an equidigital number, since it uses as much as digits as its factorization.

28022048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 875699 (or 875691 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 26.

The square root of 28022048 is about 5293.5855523454. The cubic root of 28022048 is about 303.7385795071.

The spelling of 28022048 in words is "twenty-eight million, twenty-two thousand, forty-eight".