42243402413 has 4 divisors (see below), whose sum is σ = 42244243740. Its totient is φ = 42242561088.

The previous prime is 42243402403. The next prime is 42243402457. The reversal of 42243402413 is 31420434224.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 40476208969 + 1767193444 = 201187^2 + 42038^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42243402413 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42243402403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 340220 + ... + 447477.

It is an arithmetic number, because the mean of its divisors is an integer number (10561060935).

Almost surely, 2^42243402413 is an apocalyptic number.

It is an amenable number.

42243402413 is a deficient number, since it is larger than the sum of its proper divisors (841327).

42243402413 is an equidigital number, since it uses as much as digits as its factorization.

42243402413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 841326.

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 42243402413 its reverse (31420434224), we get a palindrome (73663836637).

The spelling of 42243402413 in words is "forty-two billion, two hundred forty-three million, four hundred two thousand, four hundred thirteen".