427405 has 16 divisors (see below), whose sum is σ = 590400. Its totient is φ = 293760.

The previous prime is 427403. The next prime is 427417. The reversal of 427405 is 504724.

It is not a de Polignac number, because 427405 - 2¹ = 427403 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 841 + ... + 1249.

It is an arithmetic number, because the mean of its divisors is an integer number (36900).

2⁴²⁷⁴⁰⁵ is an apocalyptic number.

It is an amenable number.

427405 is a deficient number, since it is larger than the sum of its proper divisors (162995).

427405 is a wasteful number, since it uses less digits than its factorization.

427405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444.

The product of its (nonzero) digits is 1120, while the sum is 22.

The square root of 427405 is about 653.7621891789. The cubic root of 427405 is about 75.3262821778.

It can be divided in two parts, 42 and 7405, that added together give a palindrome (7447).

The spelling of 427405 in words is "four hundred twenty-seven thousand, four hundred five".