513238 has 16 divisors (see below), whose sum is σ = 861840. Its totient is φ = 227200.

The previous prime is 513203. The next prime is 513239. The reversal of 513238 is 832315.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 618 + ... + 1186.

It is an arithmetic number, because the mean of its divisors is an integer number (53865).

2⁵¹³²³⁸ is an apocalyptic number.

513238 is a deficient number, since it is larger than the sum of its proper divisors (348602).

513238 is a wasteful number, since it uses less digits than its factorization.

513238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 623.

The product of its digits is 720, while the sum is 22.

The square root of 513238 is about 716.4063092966. The cubic root of 513238 is about 80.0644272668.

The spelling of 513238 in words is "five hundred thirteen thousand, two hundred thirty-eight".