542479073 has 4 divisors (see below), whose sum is σ = 542927508. Its totient is φ = 542030640.

The previous prime is 542479019. The next prime is 542479087. The reversal of 542479073 is 370974245.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 115519504 + 426959569 = 10748^2 + 20663^2 .

It is a cyclic number.

It is not a de Polignac number, because 542479073 - 2¹⁸ = 542216929 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 542479073.

It is not an unprimeable number, because it can be changed into a prime (542470073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 222398 + ... + 224823.

It is an arithmetic number, because the mean of its divisors is an integer number (135731877).

Almost surely, 2^542479073 is an apocalyptic number.

It is an amenable number.

542479073 is a deficient number, since it is larger than the sum of its proper divisors (448435).

542479073 is a wasteful number, since it uses less digits than its factorization.

542479073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448434.

The product of its (nonzero) digits is 211680, while the sum is 41.

The square root of 542479073 is about 23291.1801547281. The cubic root of 542479073 is about 815.5695382946.

The spelling of 542479073 in words is "five hundred forty-two million, four hundred seventy-nine thousand, seventy-three".