516381405 has 8 divisors (see below), whose sum is σ = 826210272. Its totient is φ = 275403408.

The previous prime is 516381391. The next prime is 516381407. The reversal of 516381405 is 504183615.

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

It is not a de Polignac number, because 516381405 - 2⁴ = 516381389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (516381407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17212699 + ... + 17212728.

It is an arithmetic number, because the mean of its divisors is an integer number (103276284).

Almost surely, 2^516381405 is an apocalyptic number.

It is an amenable number.

516381405 is a deficient number, since it is larger than the sum of its proper divisors (309828867).

516381405 is a wasteful number, since it uses less digits than its factorization.

516381405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34425435.

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 516381405 is about 22724.0270418779. The cubic root of 516381405 is about 802.2755032404.

It can be divided in two parts, 5163 and 81405, that added together give a palindrome (86568).

The spelling of 516381405 in words is "five hundred sixteen million, three hundred eighty-one thousand, four hundred five".