513409804 has 12 divisors (see below), whose sum is σ = 911122128. Its totient is φ = 253089200.

The previous prime is 513409801. The next prime is 513409847. The reversal of 513409804 is 408904315.

It is a self number, because there is not a number n which added to its sum of digits gives 513409804.

It is not an unprimeable number, because it can be changed into a prime (513409801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 903607 + ... + 904174.

It is an arithmetic number, because the mean of its divisors is an integer number (75926844).

Almost surely, 2^513409804 is an apocalyptic number.

It is an amenable number.

513409804 is a deficient number, since it is larger than the sum of its proper divisors (397712324).

513409804 is a wasteful number, since it uses less digits than its factorization.

513409804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1807856 (or 1807854 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 513409804 is about 22658.5481441332. The cubic root of 513409804 is about 800.7335999998.

The spelling of 513409804 in words is "five hundred thirteen million, four hundred nine thousand, eight hundred four".