2005022042 has 4 divisors (see below), whose sum is σ = 3007533066. Its totient is φ = 1002511020.

The previous prime is 2005022029. The next prime is 2005022051. The reversal of 2005022042 is 2402205002.

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

It can be written as a sum of positive squares in only one way, i.e., 1707425041 + 297597001 = 41321^2 + 17251^2 .

It is a super-2 number, since 2×2005022042² = 8040226777811699528, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2005022042.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501255509 + ... + 501255512.

Almost surely, 2^2005022042 is an apocalyptic number.

2005022042 is a deficient number, since it is larger than the sum of its proper divisors (1002511024).

2005022042 is a wasteful number, since it uses less digits than its factorization.

2005022042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1002511023.

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 2005022042 is about 44777.4724833816. The cubic root of 2005022042 is about 1260.9747311860.

Adding to 2005022042 its reverse (2402205002), we get a palindrome (4407227044).

The spelling of 2005022042 in words is "two billion, five million, twenty-two thousand, forty-two".