542378 has 8 divisors (see below), whose sum is σ = 819840. Its totient is φ = 269100.

The previous prime is 542371. The next prime is 542401. The reversal of 542378 is 873245.

It is a happy number.

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

It is a Curzon number.

It is a nialpdrome in base 15.

It is a zygodrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 542378.

It is not an unprimeable number, because it can be changed into a prime (542371) 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, 698 + ... + 1253.

It is an arithmetic number, because the mean of its divisors is an integer number (102480).

2⁵⁴²³⁷⁸ is an apocalyptic number.

542378 is a deficient number, since it is larger than the sum of its proper divisors (277462).

542378 is a wasteful number, since it uses less digits than its factorization.

542378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2092.

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

The square root of 542378 is about 736.4631694796. The cubic root of 542378 is about 81.5518883695.

It can be divided in two parts, 54237 and 8, that added together give a palindrome (54245).

The spelling of 542378 in words is "five hundred forty-two thousand, three hundred seventy-eight".