516244644 has 96 divisors (see below), whose sum is σ = 1423215360. Its totient is φ = 161266176.

The previous prime is 516244567. The next prime is 516244657. The reversal of 516244644 is 446442615.

516244644 is a `hidden beast` number, since 5 + 1 + 6 + 2 + 4 + 4 + 644 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 516244599 and 516244608.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 581569 + ... + 582455.

It is an arithmetic number, because the mean of its divisors is an integer number (14825160).

Almost surely, 2^516244644 is an apocalyptic number.

516244644 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 516244644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (711607680).

516244644 is an abundant number, since it is smaller than the sum of its proper divisors (906970716).

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

516244644 is a wasteful number, since it uses less digits than its factorization.

516244644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1234 (or 1226 counting only the distinct ones).

The product of its digits is 92160, while the sum is 36.

The square root of 516244644 is about 22721.0176708703. The cubic root of 516244644 is about 802.2046707855.

The spelling of 516244644 in words is "five hundred sixteen million, two hundred forty-four thousand, six hundred forty-four".