43222928 has 80 divisors (see below), whose sum is σ = 100945920. Its totient is φ = 17539200.

The previous prime is 43222903. The next prime is 43222937. The reversal of 43222928 is 82922234.

It is a junction number, because it is equal to n+sod(n) for n = 43222894 and 43222903.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 204743 + ... + 204953.

It is an arithmetic number, because the mean of its divisors is an integer number (1261824).

Almost surely, 2^43222928 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 43222928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50472960).

43222928 is an abundant number, since it is smaller than the sum of its proper divisors (57722992).

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

43222928 is a wasteful number, since it uses less digits than its factorization.

43222928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316 (or 310 counting only the distinct ones).

The product of its digits is 13824, while the sum is 32.

The square root of 43222928 is about 6574.4146507503. The cubic root of 43222928 is about 350.9441934203.

The spelling of 43222928 in words is "forty-three million, two hundred twenty-two thousand, nine hundred twenty-eight".