523240452 has 48 divisors (see below), whose sum is σ = 1550344320. Its totient is φ = 149497056.

The previous prime is 523240441. The next prime is 523240457. The reversal of 523240452 is 254042325.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (523240457) 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, 345303 + ... + 346814.

It is an arithmetic number, because the mean of its divisors is an integer number (32298840).

Almost surely, 2^523240452 is an apocalyptic number.

It is an amenable number.

523240452 is an abundant number, since it is smaller than the sum of its proper divisors (1027103868).

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

523240452 is a wasteful number, since it uses less digits than its factorization.

523240452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692137 (or 692129 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 523240452 is about 22874.4497638741. The cubic root of 523240452 is about 805.8120745631.

Adding to 523240452 its reverse (254042325), we get a palindrome (777282777).

The spelling of 523240452 in words is "five hundred twenty-three million, two hundred forty thousand, four hundred fifty-two".