2042430251 has 4 divisors (see below), whose sum is σ = 2149926600. Its totient is φ = 1934933904.

The previous prime is 2042430227. The next prime is 2042430263. The reversal of 2042430251 is 1520342402.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2042430251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2042430151) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 53748146 + ... + 53748183.

It is an arithmetic number, because the mean of its divisors is an integer number (537481650).

Almost surely, 2^2042430251 is an apocalyptic number.

2042430251 is a deficient number, since it is larger than the sum of its proper divisors (107496349).

2042430251 is a wasteful number, since it uses less digits than its factorization.

2042430251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107496348.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 2042430251 is about 45193.2544855977. The cubic root of 2042430251 is about 1268.7685690990.

Adding to 2042430251 its reverse (1520342402), we get a palindrome (3562772653).

The spelling of 2042430251 in words is "two billion, forty-two million, four hundred thirty thousand, two hundred fifty-one".