516440906 has 8 divisors (see below), whose sum is σ = 777520704. Its totient is φ = 257267340.

The previous prime is 516440893. The next prime is 516440929. The reversal of 516440906 is 609044615.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×516440906³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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 3 ways as a sum of consecutive naturals, for example, 475880 + ... + 476963.

It is an arithmetic number, because the mean of its divisors is an integer number (97190088).

Almost surely, 2^516440906 is an apocalyptic number.

516440906 is a deficient number, since it is larger than the sum of its proper divisors (261079798).

516440906 is a wasteful number, since it uses less digits than its factorization.

516440906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 953116.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 516440906 is about 22725.3362131344. The cubic root of 516440906 is about 802.3063166153.

The spelling of 516440906 in words is "five hundred sixteen million, four hundred forty thousand, nine hundred six".