40404088399 has 4 divisors (see below), whose sum is σ = 40957569136. Its totient is φ = 39850607664.

The previous prime is 40404088397. The next prime is 40404088427. The reversal of 40404088399 is 99388040404.

40404088399 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40404088399 - 2¹ = 40404088397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40404088391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 276740259 + ... + 276740404.

It is an arithmetic number, because the mean of its divisors is an integer number (10239392284).

Almost surely, 2^40404088399 is an apocalyptic number.

40404088399 is a deficient number, since it is larger than the sum of its proper divisors (553480737).

40404088399 is an equidigital number, since it uses as much as digits as its factorization.

40404088399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553480736.

The product of its (nonzero) digits is 995328, while the sum is 49.

The spelling of 40404088399 in words is "forty billion, four hundred four million, eighty-eight thousand, three hundred ninety-nine".