40402340403 has 16 divisors (see below), whose sum is σ = 57421418400. Its totient is φ = 25180345856.

The previous prime is 40402340401. The next prime is 40402340413. The reversal of 40402340403 is 30404320404.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 40402340403 - 2¹ = 40402340401 is a prime.

It is a super-2 number, since 2×40402340403² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40402340401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2650800 + ... + 2665997.

It is an arithmetic number, because the mean of its divisors is an integer number (3588838650).

Almost surely, 2^40402340403 is an apocalyptic number.

40402340403 is a deficient number, since it is larger than the sum of its proper divisors (17019077997).

40402340403 is a wasteful number, since it uses less digits than its factorization.

40402340403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5316966.

The product of its (nonzero) digits is 4608, while the sum is 24.

Adding to 40402340403 its reverse (30404320404), we get a palindrome (70806660807).

The spelling of 40402340403 in words is "forty billion, four hundred two million, three hundred forty thousand, four hundred three".