43221346 has 8 divisors (see below), whose sum is σ = 74093760. Its totient is φ = 18523428.

The previous prime is 43221331. The next prime is 43221377. The reversal of 43221346 is 64312234.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 43221346.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1543606 + ... + 1543633.

It is an arithmetic number, because the mean of its divisors is an integer number (9261720).

Almost surely, 2^43221346 is an apocalyptic number.

43221346 is a deficient number, since it is larger than the sum of its proper divisors (30872414).

43221346 is a wasteful number, since it uses less digits than its factorization.

43221346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3087248.

The product of its digits is 3456, while the sum is 25.

The square root of 43221346 is about 6574.2943347556. The cubic root of 43221346 is about 350.9399117384.

The spelling of 43221346 in words is "forty-three million, two hundred twenty-one thousand, three hundred forty-six".