43828 has 6 divisors (see below), whose sum is σ = 76706. Its totient is φ = 21912.

The previous prime is 43801. The next prime is 43853. The reversal of 43828 is 82834.

43828 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 39204 + 4624 = 198^2 + 68^2 .

It is a congruent number.

It is an unprimeable number.

43828 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5475 + ... + 5482.

2⁴³⁸²⁸ is an apocalyptic number.

It is an amenable number.

43828 is a deficient number, since it is larger than the sum of its proper divisors (32878).

43828 is a wasteful number, since it uses less digits than its factorization.

43828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10961 (or 10959 counting only the distinct ones).

The product of its digits is 1536, while the sum is 25.

The square root of 43828 is about 209.3513792646. The cubic root of 43828 is about 35.2574217728.

The spelling of 43828 in words is "forty-three thousand, eight hundred twenty-eight".