516028644 has 60 divisors (see below), whose sum is σ = 1407673344. Its totient is φ = 164528496.

The previous prime is 516028631. The next prime is 516028649. The reversal of 516028644 is 446820615.

516028644 is a `hidden beast` number, since 5 + 1 + 6 + 0 + 2 + 8 + 644 = 666.

It is a super-2 number, since 2×516028644² = 532571122856957472, which contains 22 as substring.

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 = 516028599 and 516028608.

It is not an unprimeable number, because it can be changed into a prime (516028649) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 27172 + ... + 42075.

Almost surely, 2^516028644 is an apocalyptic number.

516028644 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

516028644 is an abundant number, since it is smaller than the sum of its proper divisors (891644700).

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

516028644 is a wasteful number, since it uses less digits than its factorization.

516028644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69286 (or 69275 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 516028644 is about 22716.2638653455. The cubic root of 516028644 is about 802.0927726876.

The spelling of 516028644 in words is "five hundred sixteen million, twenty-eight thousand, six hundred forty-four".