985442 has 4 divisors (see below), whose sum is σ = 1478166. Its totient is φ = 492720.

The previous prime is 985433. The next prime is 985447. The reversal of 985442 is 244589.

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., 808201 + 177241 = 899^2 + 421^2 .

It is a nialpdrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 985399 and 985408.

It is not an unprimeable number, because it can be changed into a prime (985447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 246359 + ... + 246362.

2⁹⁸⁵⁴⁴² is an apocalyptic number.

985442 is a deficient number, since it is larger than the sum of its proper divisors (492724).

985442 is a wasteful number, since it uses less digits than its factorization.

985442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492723.

The product of its digits is 11520, while the sum is 32.

The square root of 985442 is about 992.6943134722. The cubic root of 985442 is about 99.5123592637.

The spelling of 985442 in words is "nine hundred eighty-five thousand, four hundred forty-two".