43222490 has 16 divisors (see below), whose sum is σ = 77883552. Its totient is φ = 17270544.

The previous prime is 43222477. The next prime is 43222513. The reversal of 43222490 is 9422234.

43222490 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11417 + ... + 14723.

It is an arithmetic number, because the mean of its divisors is an integer number (4867722).

Almost surely, 2^43222490 is an apocalyptic number.

43222490 is a deficient number, since it is larger than the sum of its proper divisors (34661062).

43222490 is a wasteful number, since it uses less digits than its factorization.

43222490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4621.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 43222490 is about 6574.3813397155. The cubic root of 43222490 is about 350.9430079841.

It can be divided in two parts, 432 and 22490, that added together give a palindrome (22922).

The spelling of 43222490 in words is "forty-three million, two hundred twenty-two thousand, four hundred ninety".