542456 has 8 divisors (see below), whose sum is σ = 1017120. Its totient is φ = 271224.

The previous prime is 542447. The next prime is 542461. The reversal of 542456 is 654245.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33896 + ... + 33911.

It is an arithmetic number, because the mean of its divisors is an integer number (127140).

2⁵⁴²⁴⁵⁶ is an apocalyptic number.

It is an amenable number.

542456 is a deficient number, since it is larger than the sum of its proper divisors (474664).

542456 is a wasteful number, since it uses less digits than its factorization.

542456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67813 (or 67809 counting only the distinct ones).

The product of its digits is 4800, while the sum is 26.

The square root of 542456 is about 736.5161233809. The cubic root of 542456 is about 81.5557975389. Note that the first 3 decimals are identical.

The spelling of 542456 in words is "five hundred forty-two thousand, four hundred fifty-six".