28844774 has 16 divisors (see below), whose sum is σ = 52051200. Its totient is φ = 11711304.

The previous prime is 28844749. The next prime is 28844789. The reversal of 28844774 is 47744882.

It is a super-2 number, since 2×28844774² = 1664041974222152, which contains 22 as substring.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53954 + ... + 54485.

It is an arithmetic number, because the mean of its divisors is an integer number (3253200).

Almost surely, 2^28844774 is an apocalyptic number.

28844774 is a deficient number, since it is larger than the sum of its proper divisors (23206426).

28844774 is a wasteful number, since it uses less digits than its factorization.

28844774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108467.

The product of its digits is 401408, while the sum is 44.

The square root of 28844774 is about 5370.7330970734. The cubic root of 28844774 is about 306.6825367233.

The spelling of 28844774 in words is "twenty-eight million, eight hundred forty-four thousand, seven hundred seventy-four".