2042820403 has 4 divisors (see below), whose sum is σ = 2199960448. Its totient is φ = 1885680360.

The previous prime is 2042820401. The next prime is 2042820413. The reversal of 2042820403 is 3040282402.

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

It is a cyclic number.

It is not a de Polignac number, because 2042820403 - 2¹ = 2042820401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2042820401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78570003 + ... + 78570028.

It is an arithmetic number, because the mean of its divisors is an integer number (549990112).

Almost surely, 2^2042820403 is an apocalyptic number.

2042820403 is a deficient number, since it is larger than the sum of its proper divisors (157140045).

2042820403 is a wasteful number, since it uses less digits than its factorization.

2042820403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157140044.

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 2042820403 is about 45197.5707643674. The cubic root of 2042820403 is about 1268.8493521234.

The spelling of 2042820403 in words is "two billion, forty-two million, eight hundred twenty thousand, four hundred three".