513420724 has 24 divisors (see below), whose sum is σ = 903873600. Its totient is φ = 255177216.

The previous prime is 513420683. The next prime is 513420749. The reversal of 513420724 is 427024315.

It is a junction number, because it is equal to n+sod(n) for n = 513420692 and 513420701.

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, 874359 + ... + 874945.

It is an arithmetic number, because the mean of its divisors is an integer number (37661400).

Almost surely, 2^513420724 is an apocalyptic number.

It is an amenable number.

513420724 is a deficient number, since it is larger than the sum of its proper divisors (390452876).

513420724 is a wasteful number, since it uses less digits than its factorization.

513420724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1527 (or 1525 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 513420724 is about 22658.7891115126. The cubic root of 513420724 is about 800.7392770430.

The spelling of 513420724 in words is "five hundred thirteen million, four hundred twenty thousand, seven hundred twenty-four".