409859420 has 12 divisors (see below), whose sum is σ = 860704824. Its totient is φ = 163943760.

The previous prime is 409859413. The next prime is 409859447. The reversal of 409859420 is 24958904.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10246466 + ... + 10246505.

It is an arithmetic number, because the mean of its divisors is an integer number (71725402).

Almost surely, 2^409859420 is an apocalyptic number.

It is an amenable number.

409859420 is an abundant number, since it is smaller than the sum of its proper divisors (450845404).

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

409859420 is a wasteful number, since it uses less digits than its factorization.

409859420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20492980 (or 20492978 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 409859420 is about 20244.9850580335. The cubic root of 409859420 is about 742.8109668748.

It can be divided in two parts, 40985 and 9420, that added together give a palindrome (50405).

The spelling of 409859420 in words is "four hundred nine million, eight hundred fifty-nine thousand, four hundred twenty".