526290 has 32 divisors (see below), whose sum is σ = 1290816. Its totient is φ = 137280.

The previous prime is 526289. The next prime is 526291. The reversal of 526290 is 92625.

It is an interprime number because it is at equal distance from previous prime (526289) and next prime (526291).

It is a d-powerful number, because it can be written as 5⁴ + 2¹⁸ + 2¹⁸ + 6⁴ + 9² + 0 .

It is a self number, because there is not a number n which added to its sum of digits gives 526290.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (526291) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1425 + ... + 1755.

It is an arithmetic number, because the mean of its divisors is an integer number (40338).

2⁵²⁶²⁹⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 526290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (645408).

526290 is an abundant number, since it is smaller than the sum of its proper divisors (764526).

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

526290 is a wasteful number, since it uses less digits than its factorization.

526290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 526290 is about 725.4584757241. The cubic root of 526290 is about 80.7374520020.

The spelling of 526290 in words is "five hundred twenty-six thousand, two hundred ninety".