2042317345 has 4 divisors (see below), whose sum is σ = 2450780820. Its totient is φ = 1633853872.

The previous prime is 2042317337. The next prime is 2042317349. The reversal of 2042317345 is 5437132402.

It is a happy number.

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 1025536576 + 1016780769 = 32024^2 + 31887^2 .

It is a cyclic number.

It is not a de Polignac number, because 2042317345 - 2³ = 2042317337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2042317349) 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, 204231730 + ... + 204231739.

It is an arithmetic number, because the mean of its divisors is an integer number (612695205).

Almost surely, 2^2042317345 is an apocalyptic number.

It is an amenable number.

2042317345 is a deficient number, since it is larger than the sum of its proper divisors (408463475).

2042317345 is an equidigital number, since it uses as much as digits as its factorization.

2042317345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408463474.

The product of its (nonzero) digits is 20160, while the sum is 31.

The square root of 2042317345 is about 45192.0053217380. The cubic root of 2042317345 is about 1268.7451893983.

Adding to 2042317345 its reverse (5437132402), we get a palindrome (7479449747).

The spelling of 2042317345 in words is "two billion, forty-two million, three hundred seventeen thousand, three hundred forty-five".