524642 has 4 divisors (see below), whose sum is σ = 786966. Its totient is φ = 262320.

The previous prime is 524633. The next prime is 524669. The reversal of 524642 is 246425.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 373321 + 151321 = 611^2 + 389^2 .

It is an unprimeable number.

524642 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131159 + ... + 131162.

2⁵²⁴⁶⁴² is an apocalyptic number.

524642 is a deficient number, since it is larger than the sum of its proper divisors (262324).

524642 is a wasteful number, since it uses less digits than its factorization.

524642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262323.

The product of its digits is 1920, while the sum is 23.

The square root of 524642 is about 724.3217517098. The cubic root of 524642 is about 80.6530913871.

The spelling of 524642 in words is "five hundred twenty-four thousand, six hundred forty-two".