513366 has 32 divisors (see below), whose sum is σ = 1244160. Its totient is φ = 137856.

The previous prime is 513353. The next prime is 513367. The reversal of 513366 is 663315.

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513367) by changing a digit.

513366 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 355 + ... + 1073.

It is an arithmetic number, because the mean of its divisors is an integer number (38880).

2⁵¹³³⁶⁶ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 513366, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (622080).

513366 is an abundant number, since it is smaller than the sum of its proper divisors (730794).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

513366 is a wasteful number, since it uses less digits than its factorization.

513366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 748.

The product of its digits is 1620, while the sum is 24.

The square root of 513366 is about 716.4956385073. The cubic root of 513366 is about 80.0710826553.

The spelling of 513366 in words is "five hundred thirteen thousand, three hundred sixty-six".