40020344001 has 20 divisors (see below), whose sum is σ = 65218339824. Its totient is φ = 24254753400.

The previous prime is 40020343999. The next prime is 40020344017. The reversal of 40020344001 is 10044302004.

40020344001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40020344001 - 2¹ = 40020343999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40020344051) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 22457215 + ... + 22458996.

Almost surely, 2^40020344001 is an apocalyptic number.

It is an amenable number.

40020344001 is a deficient number, since it is larger than the sum of its proper divisors (25197995823).

40020344001 is a wasteful number, since it uses less digits than its factorization.

40020344001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44916234 (or 44916225 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 40020344001 its reverse (10044302004), we get a palindrome (50064646005).

The spelling of 40020344001 in words is "forty billion, twenty million, three hundred forty-four thousand, one".