440140403 has 2 divisors, whose sum is σ = 440140404. Its totient is φ = 440140402.

The previous prime is 440140399. The next prime is 440140429. The reversal of 440140403 is 304041044.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 440140403 - 2² = 440140399 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (440140483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220070201 + 220070202.

It is an arithmetic number, because the mean of its divisors is an integer number (220070202).

Almost surely, 2^440140403 is an apocalyptic number.

440140403 is a deficient number, since it is larger than the sum of its proper divisors (1).

440140403 is an equidigital number, since it uses as much as digits as its factorization.

440140403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 440140403 is about 20979.5234216605. The cubic root of 440140403 is about 760.6713844478.

Adding to 440140403 its reverse (304041044), we get a palindrome (744181447).

The spelling of 440140403 in words is "four hundred forty million, one hundred forty thousand, four hundred three".