40221013444 has 12 divisors (see below), whose sum is σ = 70586171964. Its totient is φ = 20053535744.

The previous prime is 40221013403. The next prime is 40221013453. The reversal of 40221013444 is 44431012204.

It can be written as a sum of positive squares in 2 ways, for example, as 15165922500 + 25055090944 = 123150^2 + 158288^2 .

It is a super-2 number, since 2×40221013444² (a number of 22 digits) contains 22 as substring.

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, 14241157 + ... + 14243980.

It is an arithmetic number, because the mean of its divisors is an integer number (5882180997).

Almost surely, 2^40221013444 is an apocalyptic number.

It is an amenable number.

40221013444 is a deficient number, since it is larger than the sum of its proper divisors (30365158520).

40221013444 is a wasteful number, since it uses less digits than its factorization.

40221013444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28485494 (or 28485492 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 40221013444 its reverse (44431012204), we get a palindrome (84652025648).

The spelling of 40221013444 in words is "forty billion, two hundred twenty-one million, thirteen thousand, four hundred forty-four".