857232442 has 8 divisors (see below), whose sum is σ = 1402744032. Its totient is φ = 389651100.

The previous prime is 857232419. The next prime is 857232479. The reversal of 857232442 is 244232758.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19482534 + ... + 19482577.

It is an arithmetic number, because the mean of its divisors is an integer number (175343004).

Almost surely, 2^857232442 is an apocalyptic number.

857232442 is a deficient number, since it is larger than the sum of its proper divisors (545511590).

857232442 is a wasteful number, since it uses less digits than its factorization.

857232442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38965124.

The product of its digits is 107520, while the sum is 37.

The square root of 857232442 is about 29278.5321011829. The cubic root of 857232442 is about 949.9473440806.

It can be divided in two parts, 8572 and 32442, that added together give a palindrome (41014).

The spelling of 857232442 in words is "eight hundred fifty-seven million, two hundred thirty-two thousand, four hundred forty-two".