8040040400408 has 16 divisors (see below), whose sum is σ = 15098520668280. Its totient is φ = 4013768222208.

The previous prime is 8040040400393. The next prime is 8040040400417.

It is a happy number.

8040040400408 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 781491785 + ... + 781502072.

Almost surely, 2^{8040040400408} is an apocalyptic number.

It is an amenable number.

8040040400408 is a deficient number, since it is larger than the sum of its proper divisors (7058480267872).

8040040400408 is a wasteful number, since it uses less digits than its factorization.

8040040400408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1562994506 (or 1562994502 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 32.

It can be divided in two parts, 8040040 and 400408, that added together give a palindrome (8440448).

The spelling of 8040040400408 in words is "eight trillion, forty billion, forty million, four hundred thousand, four hundred eight".