28425268 has 24 divisors (see below), whose sum is σ = 51123464. Its totient is φ = 13824000.

The previous prime is 28425253. The next prime is 28425277. The reversal of 28425268 is 86252482.

It can be written as a sum of positive squares in 4 ways, for example, as 2598544 + 25826724 = 1612^2 + 5082^2 .

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 7 ways as a sum of consecutive naturals, for example, 23068 + ... + 24268.

Almost surely, 2^28425268 is an apocalyptic number.

It is an amenable number.

28425268 is a deficient number, since it is larger than the sum of its proper divisors (22698196).

28425268 is a wasteful number, since it uses less digits than its factorization.

28425268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1363 (or 1361 counting only the distinct ones).

The product of its digits is 61440, while the sum is 37.

The square root of 28425268 is about 5331.5352385593. The cubic root of 28425268 is about 305.1885173352.

It can be divided in two parts, 284 and 25268, that added together give a palindrome (25552).

The spelling of 28425268 in words is "twenty-eight million, four hundred twenty-five thousand, two hundred sixty-eight".