40404442401 has 48 divisors (see below), whose sum is σ = 61443782400. Its totient is φ = 25535917440.

The previous prime is 40404442373. The next prime is 40404442417. The reversal of 40404442401 is 10424440404.

It is not a de Polignac number, because 40404442401 - 2¹³ = 40404434209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40404442451) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11408691 + ... + 11412231.

It is an arithmetic number, because the mean of its divisors is an integer number (1280078800).

Almost surely, 2^40404442401 is an apocalyptic number.

It is an amenable number.

40404442401 is a deficient number, since it is larger than the sum of its proper divisors (21039339999).

40404442401 is a wasteful number, since it uses less digits than its factorization.

40404442401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4046 (or 4043 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 27.

Adding to 40404442401 its reverse (10424440404), we get a palindrome (50828882805).

The spelling of 40404442401 in words is "forty billion, four hundred four million, four hundred forty-two thousand, four hundred one".