2042404451 has 2 divisors, whose sum is σ = 2042404452. Its totient is φ = 2042404450.

The previous prime is 2042404421. The next prime is 2042404453. The reversal of 2042404451 is 1544042402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2042404451 - 2¹⁴ = 2042388067 is a prime.

It is a super-3 number, since 3×2042404451³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

Together with 2042404453, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2042404451.

It is not a weakly prime, because it can be changed into another prime (2042404453) 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 as a sum of consecutive naturals, namely, 1021202225 + 1021202226.

It is an arithmetic number, because the mean of its divisors is an integer number (1021202226).

Almost surely, 2^2042404451 is an apocalyptic number.

2042404451 is a deficient number, since it is larger than the sum of its proper divisors (1).

2042404451 is an equidigital number, since it uses as much as digits as its factorization.

2042404451 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 2042404451 is about 45192.9690438679. The cubic root of 2042404451 is about 1268.7632267106.

Adding to 2042404451 its reverse (1544042402), we get a palindrome (3586446853).

The spelling of 2042404451 in words is "two billion, forty-two million, four hundred four thousand, four hundred fifty-one".