28694304 has 48 divisors (see below), whose sum is σ = 83694240. Its totient is φ = 9564480.

The previous prime is 28694273. The next prime is 28694333. The reversal of 28694304 is 40349682.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 15742 + ... + 17469.

It is an arithmetic number, because the mean of its divisors is an integer number (1743630).

Almost surely, 2^28694304 is an apocalyptic number.

28694304 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

28694304 is an abundant number, since it is smaller than the sum of its proper divisors (54999936).

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

28694304 is a wasteful number, since it uses less digits than its factorization.

28694304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33230 (or 33216 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 28694304 is about 5356.7064507960. The cubic root of 28694304 is about 306.1483325445.

The spelling of 28694304 in words is "twenty-eight million, six hundred ninety-four thousand, three hundred four".