1042642957 has 4 divisors (see below), whose sum is σ = 1048886496. Its totient is φ = 1036399420.

The previous prime is 1042642891. The next prime is 1042643053. The reversal of 1042642957 is 7592462401.

1042642957 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1042642957 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1042642057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3121519 + ... + 3121852.

It is an arithmetic number, because the mean of its divisors is an integer number (262221624).

Almost surely, 2^1042642957 is an apocalyptic number.

It is an amenable number.

1042642957 is a deficient number, since it is larger than the sum of its proper divisors (6243539).

1042642957 is an equidigital number, since it uses as much as digits as its factorization.

1042642957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6243538.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 1042642957 is about 32289.9823010171. The cubic root of 1042642957 is about 1014.0169267754.

The spelling of 1042642957 in words is "one billion, forty-two million, six hundred forty-two thousand, nine hundred fifty-seven".