523819380 has 48 divisors (see below), whose sum is σ = 1676223360. Its totient is φ = 119730048.

The previous prime is 523819357. The next prime is 523819393. The reversal of 523819380 is 83918325.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 623175 + ... + 624014.

It is an arithmetic number, because the mean of its divisors is an integer number (34921320).

Almost surely, 2^523819380 is an apocalyptic number.

It is an amenable number.

523819380 is an abundant number, since it is smaller than the sum of its proper divisors (1152403980).

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

523819380 is a wasteful number, since it uses less digits than its factorization.

523819380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1247208 (or 1247206 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 523819380 is about 22887.1007338195. The cubic root of 523819380 is about 806.1091560957.

The spelling of 523819380 in words is "five hundred twenty-three million, eight hundred nineteen thousand, three hundred eighty".