404027 has 4 divisors (see below), whose sum is σ = 435120. Its totient is φ = 372936.

The previous prime is 404021. The next prime is 404029. The reversal of 404027 is 720404.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 404027 - 2⁴ = 404011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 403996 and 404014.

It is not an unprimeable number, because it can be changed into a prime (404021) 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, 15527 + ... + 15552.

It is an arithmetic number, because the mean of its divisors is an integer number (108780).

2⁴⁰⁴⁰²⁷ is an apocalyptic number.

404027 is a deficient number, since it is larger than the sum of its proper divisors (31093).

404027 is a wasteful number, since it uses less digits than its factorization.

404027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31092.

The product of its (nonzero) digits is 224, while the sum is 17.

The square root of 404027 is about 635.6311823691. The cubic root of 404027 is about 73.9270647338.

The spelling of 404027 in words is "four hundred four thousand, twenty-seven", and thus it is an iban number.