516423264 has 96 divisors (see below), whose sum is σ = 1553561856. Its totient is φ = 147141120.

The previous prime is 516423251. The next prime is 516423269. The reversal of 516423264 is 462324615.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (516423269) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 308959 + ... + 310625.

It is an arithmetic number, because the mean of its divisors is an integer number (16182936).

Almost surely, 2^516423264 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 516423264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (776780928).

516423264 is an abundant number, since it is smaller than the sum of its proper divisors (1037138592).

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

516423264 is a wasteful number, since it uses less digits than its factorization.

516423264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2148 (or 2140 counting only the distinct ones).

The product of its digits is 34560, while the sum is 33.

The square root of 516423264 is about 22724.9480527459. The cubic root of 516423264 is about 802.2971807206.

Adding to 516423264 its reverse (462324615), we get a palindrome (978747879).

The spelling of 516423264 in words is "five hundred sixteen million, four hundred twenty-three thousand, two hundred sixty-four".