409420 has 24 divisors (see below), whose sum is σ = 938448. Its totient is φ = 148800.

The previous prime is 409397. The next prime is 409429. The reversal of 409420 is 24904.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (409429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 711 + ... + 1150.

It is an arithmetic number, because the mean of its divisors is an integer number (39102).

2⁴⁰⁹⁴²⁰ is an apocalyptic number.

It is an amenable number.

409420 is an abundant number, since it is smaller than the sum of its proper divisors (529028).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

409420 is a wasteful number, since it uses less digits than its factorization.

409420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1881 (or 1879 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 409420 is about 639.8593595471. The cubic root of 409420 is about 74.2545410200.

It can be divided in two parts, 4094 and 20, that added together give a palindrome (4114).

The spelling of 409420 in words is "four hundred nine thousand, four hundred twenty".