404056 has 16 divisors (see below), whose sum is σ = 802440. Its totient is φ = 190080.

The previous prime is 404051. The next prime is 404081. The reversal of 404056 is 650404.

404056 = T₃₃ + T₃₄ + ... + T₁₃₄.

404056 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×404056² = 326522502272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1350 + ... + 1621.

2⁴⁰⁴⁰⁵⁶ is an apocalyptic number.

It is an amenable number.

404056 is a deficient number, since it is larger than the sum of its proper divisors (398384).

404056 is a wasteful number, since it uses less digits than its factorization.

404056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2994 (or 2990 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 404056 is about 635.6539939307. The cubic root of 404056 is about 73.9288334552.

It can be divided in two parts, 4040 and 56, that added together give a 12-th power (4096 = 2¹²).

The spelling of 404056 in words is "four hundred four thousand, fifty-six".