404045866 has 24 divisors (see below), whose sum is σ = 706298400. Its totient is φ = 172848312.

The previous prime is 404045861. The next prime is 404045869. The reversal of 404045866 is 668540404.

It is not an unprimeable number, because it can be changed into a prime (404045861) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55261 + ... + 62143.

It is an arithmetic number, because the mean of its divisors is an integer number (29429100).

Almost surely, 2^404045866 is an apocalyptic number.

404045866 is a deficient number, since it is larger than the sum of its proper divisors (302252534).

404045866 is a wasteful number, since it uses less digits than its factorization.

404045866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7498 (or 7491 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 37.

The square root of 404045866 is about 20100.8921692546. The cubic root of 404045866 is about 739.2821538819.

The spelling of 404045866 in words is "four hundred four million, forty-five thousand, eight hundred sixty-six".