28244346 has 16 divisors (see below), whose sum is σ = 60834144. Its totient is φ = 8690544.

The previous prime is 28244341. The next prime is 28244353. The reversal of 28244346 is 64344282.

It is not an unprimeable number, because it can be changed into a prime (28244341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 180976 + ... + 181131.

It is an arithmetic number, because the mean of its divisors is an integer number (3802134).

Almost surely, 2^28244346 is an apocalyptic number.

28244346 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

28244346 is an abundant number, since it is smaller than the sum of its proper divisors (32589798).

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

28244346 is a wasteful number, since it uses less digits than its factorization.

28244346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362125.

The product of its digits is 36864, while the sum is 33.

The square root of 28244346 is about 5314.5409961727. The cubic root of 28244346 is about 304.5396477180.

The spelling of 28244346 in words is "twenty-eight million, two hundred forty-four thousand, three hundred forty-six".