635442043 has 2 divisors, whose sum is σ = 635442044. Its totient is φ = 635442042.

The previous prime is 635442037. The next prime is 635442079. The reversal of 635442043 is 340244536.

635442043 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 635442043 - 2⁵ = 635442011 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 635441996 and 635442014.

It is not a weakly prime, because it can be changed into another prime (635442013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317721021 + 317721022.

It is an arithmetic number, because the mean of its divisors is an integer number (317721022).

Almost surely, 2^635442043 is an apocalyptic number.

635442043 is a deficient number, since it is larger than the sum of its proper divisors (1).

635442043 is an equidigital number, since it uses as much as digits as its factorization.

635442043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34560, while the sum is 31.

The square root of 635442043 is about 25207.9757814863. The cubic root of 635442043 is about 859.7232041428.

Adding to 635442043 its reverse (340244536), we get a palindrome (975686579).

The spelling of 635442043 in words is "six hundred thirty-five million, four hundred forty-two thousand, forty-three".