985458 has 32 divisors (see below), whose sum is σ = 2123136. Its totient is φ = 304128.

The previous prime is 985451. The next prime is 985463. The reversal of 985458 is 854589.

985458 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×985458² = 1942254939528, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 985458.

It is not an unprimeable number, because it can be changed into a prime (985451) by changing a digit.

985458 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5010 + ... + 5202.

It is an arithmetic number, because the mean of its divisors is an integer number (66348).

2⁹⁸⁵⁴⁵⁸ is an apocalyptic number.

985458 is an abundant number, since it is smaller than the sum of its proper divisors (1137678).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

985458 is a wasteful number, since it uses less digits than its factorization.

985458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258.

The product of its digits is 57600, while the sum is 39.

The square root of 985458 is about 992.7023723151. The cubic root of 985458 is about 99.5128978339.

The spelling of 985458 in words is "nine hundred eighty-five thousand, four hundred fifty-eight".