545742 has 12 divisors (see below), whose sum is σ = 1182480. Its totient is φ = 181908.

The previous prime is 545731. The next prime is 545747. The reversal of 545742 is 247545.

545742 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545747) by changing a digit.

545742 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 5 ways as a sum of consecutive naturals, for example, 15142 + ... + 15177.

It is an arithmetic number, because the mean of its divisors is an integer number (98540).

2⁵⁴⁵⁷⁴² is an apocalyptic number.

545742 is an abundant number, since it is smaller than the sum of its proper divisors (636738).

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

545742 is a wasteful number, since it uses less digits than its factorization.

545742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30327 (or 30324 counting only the distinct ones).

The product of its digits is 5600, while the sum is 27.

The square root of 545742 is about 738.7435278904. The cubic root of 545742 is about 81.7201445282.

The spelling of 545742 in words is "five hundred forty-five thousand, seven hundred forty-two".