43222642 has 16 divisors (see below), whose sum is σ = 65736000. Its totient is φ = 21312720.

The previous prime is 43222639. The next prime is 43222679. The reversal of 43222642 is 24622234.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71859 + ... + 72457.

It is an arithmetic number, because the mean of its divisors is an integer number (4108500).

Almost surely, 2^43222642 is an apocalyptic number.

43222642 is a deficient number, since it is larger than the sum of its proper divisors (22513358).

43222642 is a wasteful number, since it uses less digits than its factorization.

43222642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1041.

The product of its digits is 4608, while the sum is 25.

The square root of 43222642 is about 6574.3928997285. The cubic root of 43222642 is about 350.9434193693.

Adding to 43222642 its reverse (24622234), we get a palindrome (67844876).

The spelling of 43222642 in words is "forty-three million, two hundred twenty-two thousand, six hundred forty-two".