2042284813 has 4 divisors (see below), whose sum is σ = 2042423548. Its totient is φ = 2042146080.

The previous prime is 2042284781. The next prime is 2042284847. The reversal of 2042284813 is 3184822402.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3184822402 = 2 ⋅1592411201.

It can be written as a sum of positive squares in 2 ways, for example, as 1495987684 + 546297129 = 38678^2 + 23373^2 .

It is a cyclic number.

It is not a de Polignac number, because 2042284813 - 2⁵ = 2042284781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2042284873) 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, 44256 + ... + 77737.

It is an arithmetic number, because the mean of its divisors is an integer number (510605887).

Almost surely, 2^2042284813 is an apocalyptic number.

It is an amenable number.

2042284813 is a deficient number, since it is larger than the sum of its proper divisors (138735).

2042284813 is a wasteful number, since it uses less digits than its factorization.

2042284813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138734.

The product of its (nonzero) digits is 24576, while the sum is 34.

The square root of 2042284813 is about 45191.6453893859. The cubic root of 2042284813 is about 1268.7384527636.

The spelling of 2042284813 in words is "two billion, forty-two million, two hundred eighty-four thousand, eight hundred thirteen".