2042121404 has 24 divisors (see below), whose sum is σ = 3690828288. Its totient is φ = 987631920.

The previous prime is 2042121397. The next prime is 2042121443. The reversal of 2042121404 is 4041212402.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 437507 + ... + 442149.

It is an arithmetic number, because the mean of its divisors is an integer number (153784512).

Almost surely, 2^2042121404 is an apocalyptic number.

It is an amenable number.

2042121404 is a deficient number, since it is larger than the sum of its proper divisors (1648706884).

2042121404 is a wasteful number, since it uses less digits than its factorization.

2042121404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8225 (or 8223 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 2042121404 is about 45189.8373973618. The cubic root of 2042121404 is about 1268.7046134071.

Adding to 2042121404 its reverse (4041212402), we get a palindrome (6083333806).

The spelling of 2042121404 in words is "two billion, forty-two million, one hundred twenty-one thousand, four hundred four".