40140340403 has 4 divisors (see below), whose sum is σ = 40142696880. Its totient is φ = 40137983928.

The previous prime is 40140340379. The next prime is 40140340411. The reversal of 40140340403 is 30404304104.

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 40140340403 - 2²⁰ = 40139291827 is a prime.

It is a super-2 number, since 2×40140340403² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40140340463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1152500 + ... + 1186817.

It is an arithmetic number, because the mean of its divisors is an integer number (10035674220).

Almost surely, 2^40140340403 is an apocalyptic number.

40140340403 is a deficient number, since it is larger than the sum of its proper divisors (2356477).

40140340403 is a wasteful number, since it uses less digits than its factorization.

40140340403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2356476.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 40140340403 its reverse (30404304104), we get a palindrome (70544644507).

The spelling of 40140340403 in words is "forty billion, one hundred forty million, three hundred forty thousand, four hundred three".