40400424401 has 8 divisors (see below), whose sum is σ = 42822108000. Its totient is φ = 37983761728.

The previous prime is 40400424397. The next prime is 40400424409. The reversal of 40400424401 is 10442400404.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40400424401 - 2² = 40400424397 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40400424409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1238651 + ... + 1270848.

It is an arithmetic number, because the mean of its divisors is an integer number (5352763500).

Almost surely, 2^40400424401 is an apocalyptic number.

It is an amenable number.

40400424401 is a deficient number, since it is larger than the sum of its proper divisors (2421683599).

40400424401 is a wasteful number, since it uses less digits than its factorization.

40400424401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2510463.

The product of its (nonzero) digits is 2048, while the sum is 23.

Adding to 40400424401 its reverse (10442400404), we get a palindrome (50842824805).

The spelling of 40400424401 in words is "forty billion, four hundred million, four hundred twenty-four thousand, four hundred one".