4042420451 has 2 divisors, whose sum is σ = 4042420452. Its totient is φ = 4042420450.

The previous prime is 4042420409. The next prime is 4042420477. The reversal of 4042420451 is 1540242404.

4042420451 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (4042420477) can be obtained adding 4042420451 to its sum of digits (26).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4042420451 - 2⁶ = 4042420387 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4042420451.

It is not a weakly prime, because it can be changed into another prime (4042422451) 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 as a sum of consecutive naturals, namely, 2021210225 + 2021210226.

It is an arithmetic number, because the mean of its divisors is an integer number (2021210226).

Almost surely, 2^4042420451 is an apocalyptic number.

4042420451 is a deficient number, since it is larger than the sum of its proper divisors (1).

4042420451 is an equidigital number, since it uses as much as digits as its factorization.

4042420451 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5120, while the sum is 26.

The square root of 4042420451 is about 63580.0318574944. The cubic root of 4042420451 is about 1592.9928534582.

Adding to 4042420451 its reverse (1540242404), we get a palindrome (5582662855).

The spelling of 4042420451 in words is "four billion, forty-two million, four hundred twenty thousand, four hundred fifty-one".