845542 has 8 divisors (see below), whose sum is σ = 1272600. Its totient is φ = 421344.

The previous prime is 845531. The next prime is 845567. The reversal of 845542 is 245548.

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

It is a self number, because there is not a number n which added to its sum of digits gives 845542.

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, 334 + ... + 1342.

It is an arithmetic number, because the mean of its divisors is an integer number (159075).

2⁸⁴⁵⁵⁴² is an apocalyptic number.

845542 is a deficient number, since it is larger than the sum of its proper divisors (427058).

845542 is a wasteful number, since it uses less digits than its factorization.

845542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1430.

The product of its digits is 6400, while the sum is 28.

The square root of 845542 is about 919.5335774185. The cubic root of 845542 is about 94.5609285794.

The spelling of 845542 in words is "eight hundred forty-five thousand, five hundred forty-two".