404766845 has 32 divisors (see below), whose sum is σ = 582819840. Its totient is φ = 264006720.

The previous prime is 404766841. The next prime is 404766877. The reversal of 404766845 is 548667404.

It is not a de Polignac number, because 404766845 - 2² = 404766841 is a prime.

It is a super-2 number, since 2×404766845² = 327672397622508050, which contains 22 as substring.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 404766796 and 404766805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404766841) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 60854 + ... + 67176.

It is an arithmetic number, because the mean of its divisors is an integer number (18213120).

Almost surely, 2^404766845 is an apocalyptic number.

It is an amenable number.

404766845 is a deficient number, since it is larger than the sum of its proper divisors (178052995).

404766845 is a wasteful number, since it uses less digits than its factorization.

404766845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6425.

The product of its (nonzero) digits is 645120, while the sum is 44.

The square root of 404766845 is about 20118.8181809966. The cubic root of 404766845 is about 739.7216173475.

The spelling of 404766845 in words is "four hundred four million, seven hundred sixty-six thousand, eight hundred forty-five".