28260704 has 24 divisors (see below), whose sum is σ = 56269080. Its totient is φ = 13970176.

The previous prime is 28260697. The next prime is 28260737. The reversal of 28260704 is 40706282.

28260704 = T₇₅₂ + T₇₅₃ + ... + T₈₄₀.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2114 + ... + 7809.

It is an arithmetic number, because the mean of its divisors is an integer number (2344545).

Almost surely, 2^28260704 is an apocalyptic number.

It is an amenable number.

28260704 is a deficient number, since it is larger than the sum of its proper divisors (28008376).

28260704 is an equidigital number, since it uses as much as digits as its factorization.

28260704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10022 (or 10014 counting only the distinct ones).

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

The square root of 28260704 is about 5316.0797586191. The cubic root of 28260704 is about 304.5984287821.

Adding to 28260704 its reverse (40706282), we get a palindrome (68966986).

The spelling of 28260704 in words is "twenty-eight million, two hundred sixty thousand, seven hundred four".