542634 has 8 divisors (see below), whose sum is σ = 1085280. Its totient is φ = 180876.

The previous prime is 542603. The next prime is 542683. The reversal of 542634 is 436245.

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

542634 is an admirable number.

It is an Ulam number.

It is a d-powerful number, because it can be written as 5⁵ + 4 + 6⁵ + 2⁵ + 3¹² + 4⁴ .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45214 + ... + 45225.

It is an arithmetic number, because the mean of its divisors is an integer number (135660).

2⁵⁴²⁶³⁴ is an apocalyptic number.

542634 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

542634 is a wasteful number, since it uses less digits than its factorization.

542634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90444.

The product of its digits is 2880, while the sum is 24.

The square root of 542634 is about 736.6369526436. The cubic root of 542634 is about 81.5647170607.

Adding to 542634 its reverse (436245), we get a palindrome (978879).

It can be divided in two parts, 5426 and 34, that added together give a triangular number (5460 = T₁₀₄).

The spelling of 542634 in words is "five hundred forty-two thousand, six hundred thirty-four".