1042856438 has 8 divisors (see below), whose sum is σ = 1684614288. Its totient is φ = 481318344.

The previous prime is 1042856429. The next prime is 1042856459. The reversal of 1042856438 is 8346582401.

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

It is a junction number, because it is equal to n+sod(n) for n = 1042856395 and 1042856404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20054906 + ... + 20054957.

It is an arithmetic number, because the mean of its divisors is an integer number (210576786).

Almost surely, 2^1042856438 is an apocalyptic number.

1042856438 is a deficient number, since it is larger than the sum of its proper divisors (641757850).

1042856438 is a wasteful number, since it uses less digits than its factorization.

1042856438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40109878.

The product of its (nonzero) digits is 184320, while the sum is 41.

The square root of 1042856438 is about 32293.2878165107. The cubic root of 1042856438 is about 1014.0861286607.

It can be divided in two parts, 10428 and 56438, that added together give a palindrome (66866).

The spelling of 1042856438 in words is "one billion, forty-two million, eight hundred fifty-six thousand, four hundred thirty-eight".