2042040404 has 12 divisors (see below), whose sum is σ = 3575738964. Its totient is φ = 1020400704.

The previous prime is 2042040389. The next prime is 2042040421. The reversal of 2042040404 is 4040402402.

It can be written as a sum of positive squares in 2 ways, for example, as 873084304 + 1168956100 = 29548^2 + 34190^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147419 + ... + 160674.

It is an arithmetic number, because the mean of its divisors is an integer number (297978247).

Almost surely, 2^2042040404 is an apocalyptic number.

It is an amenable number.

2042040404 is a deficient number, since it is larger than the sum of its proper divisors (1533698560).

2042040404 is a wasteful number, since it uses less digits than its factorization.

2042040404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309754 (or 309752 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 2042040404 is about 45188.9411692728. The cubic root of 2042040404 is about 1268.6878389502.

Adding to 2042040404 its reverse (4040402402), we get a palindrome (6082442806).

The spelling of 2042040404 in words is "two billion, forty-two million, forty thousand, four hundred four".