533842 has 4 divisors (see below), whose sum is σ = 800766. Its totient is φ = 266920.

The previous prime is 533837. The next prime is 533857. The reversal of 533842 is 248335.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 248335 = 5 ⋅49667.

It can be written as a sum of positive squares in only one way, i.e., 531441 + 2401 = 729^2 + 49^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133459 + ... + 133462.

2⁵³³⁸⁴² is an apocalyptic number.

533842 is a deficient number, since it is larger than the sum of its proper divisors (266924).

533842 is a wasteful number, since it uses less digits than its factorization.

533842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266923.

The product of its digits is 2880, while the sum is 25.

The square root of 533842 is about 730.6449206010. The cubic root of 533842 is about 81.1218001940.

The spelling of 533842 in words is "five hundred thirty-three thousand, eight hundred forty-two".