522940 has 24 divisors (see below), whose sum is σ = 1198512. Its totient is φ = 190080.

The previous prime is 522919. The next prime is 522943. The reversal of 522940 is 49225.

It is a happy number.

522940 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (522943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 969 + ... + 1408.

It is an arithmetic number, because the mean of its divisors is an integer number (49938).

2⁵²²⁹⁴⁰ is an apocalyptic number.

It is an amenable number.

522940 is an abundant number, since it is smaller than the sum of its proper divisors (675572).

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

522940 is a wasteful number, since it uses less digits than its factorization.

522940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2397 (or 2395 counting only the distinct ones).

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

The square root of 522940 is about 723.1459050565. The cubic root of 522940 is about 80.5657808837.

It can be divided in two parts, 52 and 2940, that added together give a palindrome (2992).

The spelling of 522940 in words is "five hundred twenty-two thousand, nine hundred forty".