409966516 has 12 divisors (see below), whose sum is σ = 721844032. Its totient is φ = 203725368.

The previous prime is 409966511. The next prime is 409966517. The reversal of 409966516 is 615669904.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (409966511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 313740 + ... + 315043.

Almost surely, 2^409966516 is an apocalyptic number.

It is an amenable number.

409966516 is a deficient number, since it is larger than the sum of its proper divisors (311877516).

409966516 is a wasteful number, since it uses less digits than its factorization.

409966516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628950 (or 628948 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 46.

The square root of 409966516 is about 20247.6298859891. The cubic root of 409966516 is about 742.8756599146.

The spelling of 409966516 in words is "four hundred nine million, nine hundred sixty-six thousand, five hundred sixteen".