523341440 has 32 divisors (see below), whose sum is σ = 1251114660. Its totient is φ = 209336320.

The previous prime is 523341437. The next prime is 523341443. The reversal of 523341440 is 44143325.

It is an interprime number because it is at equal distance from previous prime (523341437) and next prime (523341443).

It can be written as a sum of positive squares in 2 ways, for example, as 513656896 + 9684544 = 22664^2 + 3112^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (523341443) 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 3 ways as a sum of consecutive naturals, for example, 408221 + ... + 409500.

Almost surely, 2^523341440 is an apocalyptic number.

It is an amenable number.

523341440 is an abundant number, since it is smaller than the sum of its proper divisors (727773220).

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

523341440 is an equidigital number, since it uses as much as digits as its factorization.

523341440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 817740 (or 817728 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 523341440 is about 22876.6570984486. The cubic root of 523341440 is about 805.8639131360.

Adding to 523341440 its reverse (44143325), we get a palindrome (567484765).

The spelling of 523341440 in words is "five hundred twenty-three million, three hundred forty-one thousand, four hundred forty".