28333344 has 96 divisors (see below), whose sum is σ = 81454464. Its totient is φ = 8570880.

The previous prime is 28333307. The next prime is 28333367. The reversal of 28333344 is 44333382.

It is a tau number, because it is divible by the number of its divisors (96).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90949 + ... + 91259.

It is an arithmetic number, because the mean of its divisors is an integer number (848484).

Almost surely, 2^28333344 is an apocalyptic number.

28333344 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28333344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40727232).

28333344 is an abundant number, since it is smaller than the sum of its proper divisors (53121120).

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

28333344 is a wasteful number, since it uses less digits than its factorization.

28333344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410 (or 402 counting only the distinct ones).

The product of its digits is 20736, while the sum is 30.

The square root of 28333344 is about 5322.9074761825. The cubic root of 28333344 is about 304.8591807159.

The spelling of 28333344 in words is "twenty-eight million, three hundred thirty-three thousand, three hundred forty-four".