40342402055 has 4 divisors (see below), whose sum is σ = 48410882472. Its totient is φ = 32273921640.

The previous prime is 40342401997. The next prime is 40342402057. The reversal of 40342402055 is 55020424304.

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

It is not a de Polignac number, because 40342402055 - 2²⁴ = 40325624839 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 (40342402057) 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, 4034240201 + ... + 4034240210.

It is an arithmetic number, because the mean of its divisors is an integer number (12102720618).

Almost surely, 2^40342402055 is an apocalyptic number.

40342402055 is a deficient number, since it is larger than the sum of its proper divisors (8068480417).

40342402055 is an equidigital number, since it uses as much as digits as its factorization.

40342402055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8068480416.

The product of its (nonzero) digits is 19200, while the sum is 29.

Adding to 40342402055 its reverse (55020424304), we get a palindrome (95362826359).

The spelling of 40342402055 in words is "forty billion, three hundred forty-two million, four hundred two thousand, fifty-five".