28254366 has 32 divisors (see below), whose sum is σ = 71758080. Its totient is φ = 8072568.

The previous prime is 28254337. The next prime is 28254367. The reversal of 28254366 is 66345282.

It is a self number, because there is not a number n which added to its sum of digits gives 28254366.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28254367) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 36996 + ... + 37751.

It is an arithmetic number, because the mean of its divisors is an integer number (2242440).

Almost surely, 2^28254366 is an apocalyptic number.

28254366 is an abundant number, since it is smaller than the sum of its proper divisors (43503714).

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

28254366 is a wasteful number, since it uses less digits than its factorization.

28254366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74765 (or 74759 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 28254366 is about 5315.4836092307. The cubic root of 28254366 is about 304.5756564173.

The spelling of 28254366 in words is "twenty-eight million, two hundred fifty-four thousand, three hundred sixty-six".