404961716 has 12 divisors (see below), whose sum is σ = 714955332. Its totient is φ = 200688768.

The previous prime is 404961691. The next prime is 404961719. The reversal of 404961716 is 617169404.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 51897616 + 353064100 = 7204^2 + 18790^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 404961716.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404961719) by changing a digit.

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, 447515 + ... + 448418.

It is an arithmetic number, because the mean of its divisors is an integer number (59579611).

Almost surely, 2^404961716 is an apocalyptic number.

It is an amenable number.

404961716 is a deficient number, since it is larger than the sum of its proper divisors (309993616).

404961716 is a wasteful number, since it uses less digits than its factorization.

404961716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 896050 (or 896048 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 404961716 is about 20123.6606013916. The cubic root of 404961716 is about 739.8403088576.

The spelling of 404961716 in words is "four hundred four million, nine hundred sixty-one thousand, seven hundred sixteen".