28224966 has 64 divisors (see below), whose sum is σ = 70963200. Its totient is φ = 7270560.

The previous prime is 28224941. The next prime is 28224967. The reversal of 28224966 is 66942282.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28224967) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 91785 + ... + 92091.

It is an arithmetic number, because the mean of its divisors is an integer number (1108800).

Almost surely, 2^28224966 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28224966, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35481600).

28224966 is an abundant number, since it is smaller than the sum of its proper divisors (42738234).

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

28224966 is a wasteful number, since it uses less digits than its factorization.

28224966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529.

The product of its digits is 82944, while the sum is 39.

The square root of 28224966 is about 5312.7173837877. The cubic root of 28224966 is about 304.4699779774.

The spelling of 28224966 in words is "twenty-eight million, two hundred twenty-four thousand, nine hundred sixty-six".