543942 has 32 divisors (see below), whose sum is σ = 1382400. Its totient is φ = 155304.

The previous prime is 543929. The next prime is 543967. The reversal of 543942 is 249345.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

543942 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, 342 + ... + 1097.

It is an arithmetic number, because the mean of its divisors is an integer number (43200).

2⁵⁴³⁹⁴² is an apocalyptic number.

543942 is an abundant number, since it is smaller than the sum of its proper divisors (838458).

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

543942 is a wasteful number, since it uses less digits than its factorization.

543942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1457 (or 1451 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 543942 is about 737.5242368899. The cubic root of 543942 is about 81.6302007588.

It can be divided in two parts, 543 and 942, that added together give a triangular number (1485 = T₅₄).

The spelling of 543942 in words is "five hundred forty-three thousand, nine hundred forty-two".