1042642959 has 8 divisors (see below), whose sum is σ = 1397957760. Its totient is φ = 691211736.

The previous prime is 1042642891. The next prime is 1042643053. The reversal of 1042642959 is 9592462401.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1042642959 - 2²⁸ = 774207503 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1042642959.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1042642459) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 970267 + ... + 971340.

It is an arithmetic number, because the mean of its divisors is an integer number (174744720).

Almost surely, 2^1042642959 is an apocalyptic number.

1042642959 is a deficient number, since it is larger than the sum of its proper divisors (355314801).

1042642959 is a wasteful number, since it uses less digits than its factorization.

1042642959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1941789.

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 1042642959 is about 32289.9823319865. The cubic root of 1042642959 is about 1014.0169274238.

The spelling of 1042642959 in words is "one billion, forty-two million, six hundred forty-two thousand, nine hundred fifty-nine".