513730238 has 16 divisors (see below), whose sum is σ = 889402464. Its totient is φ = 217989600.

The previous prime is 513730223. The next prime is 513730249. The reversal of 513730238 is 832037315.

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, 180245 + ... + 183072.

It is an arithmetic number, because the mean of its divisors is an integer number (55587654).

Almost surely, 2^513730238 is an apocalyptic number.

513730238 is a deficient number, since it is larger than the sum of its proper divisors (375672226).

513730238 is a wasteful number, since it uses less digits than its factorization.

513730238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363427.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 513730238 is about 22665.6179708386. The cubic root of 513730238 is about 800.9001524022.

The spelling of 513730238 in words is "five hundred thirteen million, seven hundred thirty thousand, two hundred thirty-eight".