28844452 has 48 divisors (see below), whose sum is σ = 62782720. Its totient is φ = 11290752.

The previous prime is 28844449. The next prime is 28844467. The reversal of 28844452 is 25444882.

It is a super-2 number, since 2×28844452² = 1664004822360608, which contains 22 as substring.

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, 39313 + ... + 40039.

Almost surely, 2^28844452 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28844452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31391360).

28844452 is an abundant number, since it is smaller than the sum of its proper divisors (33938268).

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

28844452 is a wasteful number, since it uses less digits than its factorization.

28844452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 860 (or 858 counting only the distinct ones).

The product of its digits is 81920, while the sum is 37.

The square root of 28844452 is about 5370.7031197042. The cubic root of 28844452 is about 306.6813955329.

The spelling of 28844452 in words is "twenty-eight million, eight hundred forty-four thousand, four hundred fifty-two".