404744 has 8 divisors (see below), whose sum is σ = 758910. Its totient is φ = 202368.

The previous prime is 404713. The next prime is 404773. The reversal of 404744 is 447404.

It can be written as a sum of positive squares in only one way, i.e., 348100 + 56644 = 590^2 + 238^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

404744 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25289 + ... + 25304.

2⁴⁰⁴⁷⁴⁴ is an apocalyptic number.

It is an amenable number.

404744 is a deficient number, since it is larger than the sum of its proper divisors (354166).

404744 is a wasteful number, since it uses less digits than its factorization.

404744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50599 (or 50595 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 23.

The square root of 404744 is about 636.1949386784. The cubic root of 404744 is about 73.9707700481.

The spelling of 404744 in words is "four hundred four thousand, seven hundred forty-four", and thus it is an iban number.