523780464 has 80 divisors (see below), whose sum is σ = 1413909504. Its totient is φ = 166886400.

The previous prime is 523780457. The next prime is 523780469. The reversal of 523780464 is 464087325.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (523780469) 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 15 ways as a sum of consecutive naturals, for example, 121384 + ... + 125624.

Almost surely, 2^523780464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 523780464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (706954752).

523780464 is an abundant number, since it is smaller than the sum of its proper divisors (890129040).

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

523780464 is a wasteful number, since it uses less digits than its factorization.

523780464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4366 (or 4360 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 39.

The square root of 523780464 is about 22886.2505448140. The cubic root of 523780464 is about 806.0891929035.

The spelling of 523780464 in words is "five hundred twenty-three million, seven hundred eighty thousand, four hundred sixty-four".