513944 has 16 divisors (see below), whose sum is σ = 1020600. Its totient is φ = 241792.

The previous prime is 513943. The next prime is 513977. The reversal of 513944 is 449315.

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513943) 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, 1754 + ... + 2025.

2⁵¹³⁹⁴⁴ is an apocalyptic number.

It is an amenable number.

513944 is a deficient number, since it is larger than the sum of its proper divisors (506656).

513944 is a wasteful number, since it uses less digits than its factorization.

513944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3802 (or 3798 counting only the distinct ones).

The product of its digits is 2160, while the sum is 26.

The square root of 513944 is about 716.8988771089. The cubic root of 513944 is about 80.1011221251.

The spelling of 513944 in words is "five hundred thirteen thousand, nine hundred forty-four".