28048770 has 24 divisors (see below), whose sum is σ = 72927036. Its totient is φ = 7479648.

The previous prime is 28048751. The next prime is 28048817. The reversal of 28048770 is 7784082.

It can be written as a sum of positive squares in 2 ways, for example, as 25735329 + 2313441 = 5073^2 + 1521^2 .

It is a Curzon number.

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, 155737 + ... + 155916.

Almost surely, 2^28048770 is an apocalyptic number.

28048770 is an abundant number, since it is smaller than the sum of its proper divisors (44878266).

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

28048770 is a wasteful number, since it uses less digits than its factorization.

28048770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311666 (or 311663 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 36.

The square root of 28048770 is about 5296.1089490304. The cubic root of 28048770 is about 303.8350978356.

The spelling of 28048770 in words is "twenty-eight million, forty-eight thousand, seven hundred seventy".