542594 has 16 divisors (see below), whose sum is σ = 899640. Its totient is φ = 243840.

The previous prime is 542587. The next prime is 542599. The reversal of 542594 is 495245.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 316969 + 225625 = 563^2 + 475^2 .

It is not an unprimeable number, because it can be changed into a prime (542599) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 812 + ... + 1320.

2⁵⁴²⁵⁹⁴ is an apocalyptic number.

542594 is a deficient number, since it is larger than the sum of its proper divisors (357046).

542594 is a wasteful number, since it uses less digits than its factorization.

542594 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565.

The product of its digits is 7200, while the sum is 29.

The square root of 542594 is about 736.6098017268. The cubic root of 542594 is about 81.5627128437.

The spelling of 542594 in words is "five hundred forty-two thousand, five hundred ninety-four".