43973628 has 48 divisors (see below), whose sum is σ = 112402080. Its totient is φ = 13318144.

The previous prime is 43973621. The next prime is 43973639. The reversal of 43973628 is 82637934.

It is a self number, because there is not a number n which added to its sum of digits gives 43973628.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43973621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2200 + ... + 9632.

It is an arithmetic number, because the mean of its divisors is an integer number (2341710).

Almost surely, 2^43973628 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 43973628, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56201040).

43973628 is an abundant number, since it is smaller than the sum of its proper divisors (68428452).

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

43973628 is a wasteful number, since it uses less digits than its factorization.

43973628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7486 (or 7484 counting only the distinct ones).

The product of its digits is 217728, while the sum is 42.

The square root of 43973628 is about 6631.2614184633. The cubic root of 43973628 is about 352.9642873559.

The spelling of 43973628 in words is "forty-three million, nine hundred seventy-three thousand, six hundred twenty-eight".