40220044001 has 4 divisors (see below), whose sum is σ = 41606942100. Its totient is φ = 38833145904.

The previous prime is 40220043989. The next prime is 40220044019. The reversal of 40220044001 is 10044002204.

40220044001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 16236875776 + 23983168225 = 127424^2 + 154865^2 .

It is a cyclic number.

It is not a de Polignac number, because 40220044001 - 2²² = 40215849697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40220044061) 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, 693449006 + ... + 693449063.

It is an arithmetic number, because the mean of its divisors is an integer number (10401735525).

Almost surely, 2^40220044001 is an apocalyptic number.

It is an amenable number.

40220044001 is a deficient number, since it is larger than the sum of its proper divisors (1386898099).

40220044001 is a wasteful number, since it uses less digits than its factorization.

40220044001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1386898098.

The product of its (nonzero) digits is 256, while the sum is 17.

Adding to 40220044001 its reverse (10044002204), we get a palindrome (50264046205).

The spelling of 40220044001 in words is "forty billion, two hundred twenty million, forty-four thousand, one".