2004402020242 has 4 divisors (see below), whose sum is σ = 3006603030366. Its totient is φ = 1002201010120.

The previous prime is 2004402020219. The next prime is 2004402020261. The reversal of 2004402020242 is 2420202044002.

It is a happy number.

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., 1394876740401 + 609525279841 = 1181049^2 + 780721^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501100505059 + ... + 501100505062.

Almost surely, 2^{2004402020242} is an apocalyptic number.

2004402020242 is a deficient number, since it is larger than the sum of its proper divisors (1002201010124).

2004402020242 is a wasteful number, since it uses less digits than its factorization.

2004402020242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1002201010123.

The product of its (nonzero) digits is 2048, while the sum is 22.

Adding to 2004402020242 its reverse (2420202044002), we get a palindrome (4424604064244).

The spelling of 2004402020242 in words is "two trillion, four billion, four hundred two million, twenty thousand, two hundred forty-two".