40144421204 has 12 divisors (see below), whose sum is σ = 70254277044. Its totient is φ = 20071770624.

The previous prime is 40144421203. The next prime is 40144421227. The reversal of 40144421204 is 40212444104.

It can be written as a sum of positive squares in 2 ways, for example, as 14907921604 + 25236499600 = 122098^2 + 158860^2 .

It is a super-2 number, since 2×40144421204² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40144421201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 180602 + ... + 336014.

It is an arithmetic number, because the mean of its divisors is an integer number (5854523087).

Almost surely, 2^40144421204 is an apocalyptic number.

It is an amenable number.

40144421204 is a deficient number, since it is larger than the sum of its proper divisors (30109855840).

40144421204 is a wasteful number, since it uses less digits than its factorization.

40144421204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219994 (or 219992 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 26.

Adding to 40144421204 its reverse (40212444104), we get a palindrome (80356865308).

The spelling of 40144421204 in words is "forty billion, one hundred forty-four million, four hundred twenty-one thousand, two hundred four".