4040661403 has 2 divisors, whose sum is σ = 4040661404. Its totient is φ = 4040661402.

The previous prime is 4040661377. The next prime is 4040661407. The reversal of 4040661403 is 3041660404.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4040661403 is a prime.

It is not a weakly prime, because it can be changed into another prime (4040661407) 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 as a sum of consecutive naturals, namely, 2020330701 + 2020330702.

It is an arithmetic number, because the mean of its divisors is an integer number (2020330702).

Almost surely, 2^4040661403 is an apocalyptic number.

4040661403 is a deficient number, since it is larger than the sum of its proper divisors (1).

4040661403 is an equidigital number, since it uses as much as digits as its factorization.

4040661403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 4040661403 is about 63566.1970153949. The cubic root of 4040661403 is about 1592.7617578003.

Subtracting from 4040661403 its reverse (3041660404), we obtain a palindrome (999000999).

The spelling of 4040661403 in words is "four billion, forty million, six hundred sixty-one thousand, four hundred three".