523949418 has 64 divisors (see below), whose sum is σ = 1245248640. Its totient is φ = 162720000.

The previous prime is 523949417. The next prime is 523949431. The reversal of 523949418 is 814949325.

It is not an unprimeable number, because it can be changed into a prime (523949417) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 89893 + ... + 95543.

It is an arithmetic number, because the mean of its divisors is an integer number (19457010).

Almost surely, 2^523949418 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 523949418, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (622624320).

523949418 is an abundant number, since it is smaller than the sum of its proper divisors (721299222).

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

523949418 is a wasteful number, since it uses less digits than its factorization.

523949418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5780 (or 5774 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 523949418 is about 22889.9414153903. The cubic root of 523949418 is about 806.1758560266.

The spelling of 523949418 in words is "five hundred twenty-three million, nine hundred forty-nine thousand, four hundred eighteen".