10857442 has 4 divisors (see below), whose sum is σ = 16286166. Its totient is φ = 5428720.

The previous prime is 10857439. The next prime is 10857443. The reversal of 10857442 is 24475801.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 8357881 + 2499561 = 2891^2 + 1581^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (10857443) by changing a digit.

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 as a sum of consecutive naturals, namely, 2714359 + ... + 2714362.

Almost surely, 2^10857442 is an apocalyptic number.

10857442 is a deficient number, since it is larger than the sum of its proper divisors (5428724).

10857442 is an equidigital number, since it uses as much as digits as its factorization.

10857442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5428723.

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 10857442 is about 3295.0632770859. The cubic root of 10857442 is about 221.4330826295.

The spelling of 10857442 in words is "ten million, eight hundred fifty-seven thousand, four hundred forty-two".