4006321440401 has 12 divisors (see below), whose sum is σ = 4905699724080. Its totient is φ = 3253253499720.

The previous prime is 4006321440389. The next prime is 4006321440409. The reversal of 4006321440401 is 1040441236004.

It is not a de Polignac number, because 4006321440401 - 2²² = 4006317246097 is a prime.

It is a super-2 number, since 2×4006321440401² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4006321440409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2151621755 + ... + 2151623616.

It is an arithmetic number, because the mean of its divisors is an integer number (408808310340).

Almost surely, 2^{4006321440401} is an apocalyptic number.

It is an amenable number.

4006321440401 is a deficient number, since it is larger than the sum of its proper divisors (899378283679).

4006321440401 is a wasteful number, since it uses less digits than its factorization.

4006321440401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4303245404 (or 4303245397 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 4006321440401 its reverse (1040441236004), we get a palindrome (5046762676405).

The spelling of 4006321440401 in words is "four trillion, six billion, three hundred twenty-one million, four hundred forty thousand, four hundred one".