2000042421 has 16 divisors (see below), whose sum is σ = 2875614336. Its totient is φ = 1229184576.

The previous prime is 2000042419. The next prime is 2000042423. The reversal of 2000042421 is 1242400002.

It is an interprime number because it is at equal distance from previous prime (2000042419) and next prime (2000042423).

It is not a de Polignac number, because 2000042421 - 2¹ = 2000042419 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2000042421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2000042423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3025 + ... + 63318.

It is an arithmetic number, because the mean of its divisors is an integer number (179725896).

Almost surely, 2^2000042421 is an apocalyptic number.

It is an amenable number.

2000042421 is a deficient number, since it is larger than the sum of its proper divisors (875571915).

2000042421 is a wasteful number, since it uses less digits than its factorization.

2000042421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67132.

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 2000042421 is about 44721.8338286793. The cubic root of 2000042421 is about 1259.9299576837.

Adding to 2000042421 its reverse (1242400002), we get a palindrome (3242442423).

The spelling of 2000042421 in words is "two billion, forty-two thousand, four hundred twenty-one".