2042402443 has 4 divisors (see below), whose sum is σ = 2058484480. Its totient is φ = 2026320408.

The previous prime is 2042402393. The next prime is 2042402447. The reversal of 2042402443 is 3442042402.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2042402443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2042402447) 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, 8040828 + ... + 8041081.

It is an arithmetic number, because the mean of its divisors is an integer number (514621120).

Almost surely, 2^2042402443 is an apocalyptic number.

2042402443 is a deficient number, since it is larger than the sum of its proper divisors (16082037).

2042402443 is a wasteful number, since it uses less digits than its factorization.

2042402443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16082036.

The product of its (nonzero) digits is 6144, while the sum is 25.

The square root of 2042402443 is about 45192.9468280173. The cubic root of 2042402443 is about 1268.7628109135.

Adding to 2042402443 its reverse (3442042402), we get a palindrome (5484444845).

The spelling of 2042402443 in words is "two billion, forty-two million, four hundred two thousand, four hundred forty-three".