523490 has 16 divisors (see below), whose sum is σ = 1028160. Its totient is φ = 190320.

The previous prime is 523489. The next prime is 523493. The reversal of 523490 is 94325.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (523493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2270 + ... + 2489.

It is an arithmetic number, because the mean of its divisors is an integer number (64260).

2⁵²³⁴⁹⁰ is an apocalyptic number.

523490 is a deficient number, since it is larger than the sum of its proper divisors (504670).

523490 is a wasteful number, since it uses less digits than its factorization.

523490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4777.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 523490 is about 723.5260879885. The cubic root of 523490 is about 80.5940158972.

The spelling of 523490 in words is "five hundred twenty-three thousand, four hundred ninety".