43221426 has 32 divisors (see below), whose sum is σ = 90460800. Its totient is φ = 13749120.

The previous prime is 43221413. The next prime is 43221433. The reversal of 43221426 is 62412234.

It is a junction number, because it is equal to n+sod(n) for n = 43221396 and 43221405.

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, 14091 + ... + 16881.

It is an arithmetic number, because the mean of its divisors is an integer number (2826900).

Almost surely, 2^43221426 is an apocalyptic number.

43221426 is an abundant number, since it is smaller than the sum of its proper divisors (47239374).

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

43221426 is a wasteful number, since it uses less digits than its factorization.

43221426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2914.

The product of its digits is 2304, while the sum is 24.

The square root of 43221426 is about 6574.3004190560. The cubic root of 43221426 is about 350.9401282609.

The spelling of 43221426 in words is "forty-three million, two hundred twenty-one thousand, four hundred twenty-six".