542268 has 24 divisors (see below), whose sum is σ = 1406160. Its totient is φ = 180720.

The previous prime is 542263. The next prime is 542281. The reversal of 542268 is 862245.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542261) by changing a digit.

542268 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2403 + ... + 2618.

It is an arithmetic number, because the mean of its divisors is an integer number (58590).

2⁵⁴²²⁶⁸ is an apocalyptic number.

It is an amenable number.

542268 is an abundant number, since it is smaller than the sum of its proper divisors (863892).

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

542268 is a wasteful number, since it uses less digits than its factorization.

542268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5034 (or 5026 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 542268 is about 736.3884844292. The cubic root of 542268 is about 81.5463748014.

The spelling of 542268 in words is "five hundred forty-two thousand, two hundred sixty-eight".