542178 has 48 divisors (see below), whose sum is σ = 1450176. Its totient is φ = 142560.

The previous prime is 542167. The next prime is 542183. The reversal of 542178 is 871245.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1473 + ... + 1803.

It is an arithmetic number, because the mean of its divisors is an integer number (30212).

2⁵⁴²¹⁷⁸ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 542178, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (725088).

542178 is an abundant number, since it is smaller than the sum of its proper divisors (907998).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

542178 is a wasteful number, since it uses less digits than its factorization.

542178 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359 (or 356 counting only the distinct ones).

The product of its digits is 2240, while the sum is 27.

The square root of 542178 is about 736.3273728444. The cubic root of 542178 is about 81.5418631455.

The spelling of 542178 in words is "five hundred forty-two thousand, one hundred seventy-eight".