2000000042 has 4 divisors (see below), whose sum is σ = 3000000066. Its totient is φ = 1000000020.

The previous prime is 2000000033. The next prime is 2000000063. The reversal of 2000000042 is 2400000002.

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., 1047104881 + 952895161 = 32359^2 + 30869^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1999999966 and 2000000029.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500000009 + ... + 500000012.

Almost surely, 2^2000000042 is an apocalyptic number.

2000000042 is a deficient number, since it is larger than the sum of its proper divisors (1000000024).

2000000042 is a wasteful number, since it uses less digits than its factorization.

2000000042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000000023.

The product of its (nonzero) digits is 16, while the sum is 8.

The square root of 2000000042 is about 44721.3600195701. The cubic root of 2000000042 is about 1259.9210587143.

Adding to 2000000042 its reverse (2400000002), we get a palindrome (4400000044).

The spelling of 2000000042 in words is "two billion, forty-two", and thus it is an aban number, an eban number, and an uban number.