1042420469 has 2 divisors, whose sum is σ = 1042420470. Its totient is φ = 1042420468.

The previous prime is 1042420453. The next prime is 1042420471. The reversal of 1042420469 is 9640242401.

1042420469 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 791578225 + 250842244 = 28135^2 + 15838^2 .

It is a cyclic number.

It is not a de Polignac number, because 1042420469 - 2⁴ = 1042420453 is a prime.

It is a super-2 number, since 2×1042420469² = 2173280868380359922, which contains 22 as substring.

Together with 1042420471, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1042420409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521210234 + 521210235.

It is an arithmetic number, because the mean of its divisors is an integer number (521210235).

Almost surely, 2^1042420469 is an apocalyptic number.

It is an amenable number.

1042420469 is a deficient number, since it is larger than the sum of its proper divisors (1).

1042420469 is an equidigital number, since it uses as much as digits as its factorization.

1042420469 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 1042420469 is about 32286.5369620218. The cubic root of 1042420469 is about 1013.9447951329.

The spelling of 1042420469 in words is "one billion, forty-two million, four hundred twenty thousand, four hundred sixty-nine".