28346444 has 12 divisors (see below), whose sum is σ = 56692944. Its totient is φ = 12148464.

The previous prime is 28346443. The next prime is 28346447. The reversal of 28346444 is 44464382.

28346444 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (28346443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 506159 + ... + 506214.

It is an arithmetic number, because the mean of its divisors is an integer number (4724412).

Almost surely, 2^28346444 is an apocalyptic number.

It is an amenable number.

28346444 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

28346444 is a wasteful number, since it uses less digits than its factorization.

28346444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1012384 (or 1012382 counting only the distinct ones).

The product of its digits is 73728, while the sum is 35.

The square root of 28346444 is about 5324.1378644810. The cubic root of 28346444 is about 304.9061576386.

The spelling of 28346444 in words is "twenty-eight million, three hundred forty-six thousand, four hundred forty-four".