542073 has 16 divisors (see below), whose sum is σ = 838656. Its totient is φ = 305040.

The previous prime is 542071. The next prime is 542081. The reversal of 542073 is 370245.

It is a happy number.

It is not a de Polignac number, because 542073 - 2¹ = 542071 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (542071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1588 + ... + 1898.

It is an arithmetic number, because the mean of its divisors is an integer number (52416).

2⁵⁴²⁰⁷³ is an apocalyptic number.

It is an amenable number.

542073 is a deficient number, since it is larger than the sum of its proper divisors (296583).

542073 is a wasteful number, since it uses less digits than its factorization.

542073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404.

The product of its (nonzero) digits is 840, while the sum is 21.

The square root of 542073 is about 736.2560695845. The cubic root of 542073 is about 81.5365989159.

The spelling of 542073 in words is "five hundred forty-two thousand, seventy-three".