404895644 has 12 divisors (see below), whose sum is σ = 709624944. Its totient is φ = 202145664.

The previous prime is 404895641. The next prime is 404895653. The reversal of 404895644 is 446598404.

It is a junction number, because it is equal to n+sod(n) for n = 404895595 and 404895604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404895641) 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, 72512 + ... + 77895.

It is an arithmetic number, because the mean of its divisors is an integer number (59135412).

Almost surely, 2^404895644 is an apocalyptic number.

It is an amenable number.

404895644 is a deficient number, since it is larger than the sum of its proper divisors (304729300).

404895644 is a wasteful number, since it uses less digits than its factorization.

404895644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151084 (or 151082 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 44.

The square root of 404895644 is about 20122.0188847938. The cubic root of 404895644 is about 739.8000701670.

The spelling of 404895644 in words is "four hundred four million, eight hundred ninety-five thousand, six hundred forty-four".