542387 has 8 divisors (see below), whose sum is σ = 572400. Its totient is φ = 513184.

The previous prime is 542371. The next prime is 542401. The reversal of 542387 is 783245.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 542387 - 2⁴ = 542371 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a d-powerful number, because it can be written as 5⁶ + 4⁹ + 3² + 2¹⁸ + 8² + 7⁴ .

It is a Duffinian number.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (542587) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1553 + ... + 1869.

It is an arithmetic number, because the mean of its divisors is an integer number (71550).

2⁵⁴²³⁸⁷ is an apocalyptic number.

542387 is a deficient number, since it is larger than the sum of its proper divisors (30013).

542387 is a wasteful number, since it uses less digits than its factorization.

542387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405.

The product of its digits is 6720, while the sum is 29.

The square root of 542387 is about 736.4692797395. The cubic root of 542387 is about 81.5523394467.

It can be divided in two parts, 54238 and 7, that added together give a palindrome (54245).

The spelling of 542387 in words is "five hundred forty-two thousand, three hundred eighty-seven".