1042043879 has 2 divisors, whose sum is σ = 1042043880. Its totient is φ = 1042043878.

The previous prime is 1042043837. The next prime is 1042043887. The reversal of 1042043879 is 9783402401.

It is a strong prime.

It is an emirp because it is prime and its reverse (9783402401) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1042043879 is a prime.

It is a super-2 number, since 2×1042043879² = 2171710891522733282, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1042043179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521021939 + 521021940.

It is an arithmetic number, because the mean of its divisors is an integer number (521021940).

Almost surely, 2^1042043879 is an apocalyptic number.

1042043879 is a deficient number, since it is larger than the sum of its proper divisors (1).

1042043879 is an equidigital number, since it uses as much as digits as its factorization.

1042043879 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 1042043879 is about 32280.7044377907. The cubic root of 1042043879 is about 1013.8226795142.

The spelling of 1042043879 in words is "one billion, forty-two million, forty-three thousand, eight hundred seventy-nine".