40004423201 has 4 divisors (see below), whose sum is σ = 41383886100. Its totient is φ = 38624960304.

The previous prime is 40004423197. The next prime is 40004423209. The reversal of 40004423201 is 10232440004.

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

It can be written as a sum of positive squares in 2 ways, for example, as 31073228176 + 8931195025 = 176276^2 + 94505^2 .

It is a cyclic number.

It is not a de Polignac number, because 40004423201 - 2² = 40004423197 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40004423209) 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, 689731406 + ... + 689731463.

It is an arithmetic number, because the mean of its divisors is an integer number (10345971525).

Almost surely, 2^40004423201 is an apocalyptic number.

It is an amenable number.

40004423201 is a deficient number, since it is larger than the sum of its proper divisors (1379462899).

40004423201 is a wasteful number, since it uses less digits than its factorization.

40004423201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1379462898.

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 40004423201 its reverse (10232440004), we get a palindrome (50236863205).

The spelling of 40004423201 in words is "forty billion, four million, four hundred twenty-three thousand, two hundred one".