513805468 has 24 divisors (see below), whose sum is σ = 985204080. Its totient is φ = 232523520.

The previous prime is 513805447. The next prime is 513805519. The reversal of 513805468 is 864508315.

It is a self number, because there is not a number n which added to its sum of digits gives 513805468.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15421 + ... + 35572.

It is an arithmetic number, because the mean of its divisors is an integer number (41050170).

Almost surely, 2^513805468 is an apocalyptic number.

It is an amenable number.

513805468 is a deficient number, since it is larger than the sum of its proper divisors (471398612).

513805468 is a wasteful number, since it uses less digits than its factorization.

513805468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51237 (or 51235 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 40.

The square root of 513805468 is about 22667.2774721624. The cubic root of 513805468 is about 800.9392447592.

The spelling of 513805468 in words is "five hundred thirteen million, eight hundred five thousand, four hundred sixty-eight".