516554440 has 64 divisors (see below), whose sum is σ = 1207353600. Its totient is φ = 198755328.

The previous prime is 516554413. The next prime is 516554443. The reversal of 516554440 is 44455615.

It is a junction number, because it is equal to n+sod(n) for n = 516554396 and 516554405.

It is not an unprimeable number, because it can be changed into a prime (516554443) 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, 108592 + ... + 113248.

It is an arithmetic number, because the mean of its divisors is an integer number (18864900).

Almost surely, 2^516554440 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 516554440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (603676800).

516554440 is an abundant number, since it is smaller than the sum of its proper divisors (690799160).

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

516554440 is a wasteful number, since it uses less digits than its factorization.

516554440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4774 (or 4770 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 34.

The square root of 516554440 is about 22727.8340367049. The cubic root of 516554440 is about 802.3651051234.

The spelling of 516554440 in words is "five hundred sixteen million, five hundred fifty-four thousand, four hundred forty".