40223522 has 16 divisors (see below), whose sum is σ = 63444600. Its totient is φ = 19098240.

The previous prime is 40223509. The next prime is 40223537. The reversal of 40223522 is 22532204.

It can be written as a sum of positive squares in 4 ways, for example, as 25715041 + 14508481 = 5071^2 + 3809^2 .

It is a junction number, because it is equal to n+sod(n) for n = 40223494 and 40223503.

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 7 ways as a sum of consecutive naturals, for example, 2147 + ... + 9222.

Almost surely, 2^40223522 is an apocalyptic number.

40223522 is a deficient number, since it is larger than the sum of its proper divisors (23221078).

40223522 is a wasteful number, since it uses less digits than its factorization.

40223522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11461.

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 40223522 is about 6342.2016681906. The cubic root of 40223522 is about 342.6310351618.

Adding to 40223522 its reverse (22532204), we get a palindrome (62755726).

The spelling of 40223522 in words is "forty million, two hundred twenty-three thousand, five hundred twenty-two".