40321222 has 4 divisors (see below), whose sum is σ = 60481836. Its totient is φ = 20160610.

The previous prime is 40321219. The next prime is 40321241. The reversal of 40321222 is 22212304.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 40321196 and 40321205.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 10080304 + ... + 10080307.

It is an arithmetic number, because the mean of its divisors is an integer number (15120459).

Almost surely, 2^40321222 is an apocalyptic number.

40321222 is a deficient number, since it is larger than the sum of its proper divisors (20160614).

40321222 is a wasteful number, since it uses less digits than its factorization.

40321222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20160613.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 40321222 is about 6349.8993692814. The cubic root of 40321222 is about 342.9082194574.

Adding to 40321222 its reverse (22212304), we get a palindrome (62533526).

The spelling of 40321222 in words is "forty million, three hundred twenty-one thousand, two hundred twenty-two".