1042424869 has 2 divisors, whose sum is σ = 1042424870. Its totient is φ = 1042424868.

The previous prime is 1042424863. The next prime is 1042424881. The reversal of 1042424869 is 9684242401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1040062500 + 2362369 = 32250^2 + 1537^2 .

It is a cyclic number.

It is not a de Polignac number, because 1042424869 - 2⁷ = 1042424741 is a prime.

It is a super-2 number, since 2×1042424869² = 2173299215019334322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1042424863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521212434 + 521212435.

It is an arithmetic number, because the mean of its divisors is an integer number (521212435).

Almost surely, 2^1042424869 is an apocalyptic number.

It is an amenable number.

1042424869 is a deficient number, since it is larger than the sum of its proper divisors (1).

1042424869 is an equidigital number, since it uses as much as digits as its factorization.

1042424869 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 110592, while the sum is 40.

The square root of 1042424869 is about 32286.6051018065. The cubic root of 1042424869 is about 1013.9462217328.

The spelling of 1042424869 in words is "one billion, forty-two million, four hundred twenty-four thousand, eight hundred sixty-nine".