404048 has 10 divisors (see below), whose sum is σ = 782874. Its totient is φ = 202016.

The previous prime is 404029. The next prime is 404051. The reversal of 404048 is 840404.

It can be written as a sum of positive squares in only one way, i.e., 399424 + 4624 = 632^2 + 68^2 .

It is a congruent number.

It is an unprimeable 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, 12611 + ... + 12642.

2⁴⁰⁴⁰⁴⁸ is an apocalyptic number.

It is an amenable number.

404048 is a deficient number, since it is larger than the sum of its proper divisors (378826).

404048 is a wasteful number, since it uses less digits than its factorization.

404048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25261 (or 25255 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 404048 is about 635.6477011679. The cubic root of 404048 is about 73.9283455405.

The spelling of 404048 in words is "four hundred four thousand, forty-eight".