524290 has 32 divisors (see below), whose sum is σ = 1053360. Its totient is φ = 186624.

The previous prime is 524287. The next prime is 524309. The reversal of 524290 is 92425.

It is a happy number.

524290 is nontrivially palindromic in base 4 and base 8.

It can be written as a sum of positive squares in 8 ways, for example, as 294849 + 229441 = 543^2 + 479^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (2) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4756 + ... + 4864.

524290 is a Friedman number, since it can be written as 4^(5+9/(2+0))+2, using all its digits and the basic arithmetic operations.

2⁵²⁴²⁹⁰ is an apocalyptic number.

524290 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.

524290 is a wasteful number, since it uses less digits than its factorization.

524290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 524290 is about 724.0787250016. The cubic root of 524290 is about 80.6350497258.

The spelling of 524290 in words is "five hundred twenty-four thousand, two hundred ninety".