9805420 has 12 divisors (see below), whose sum is σ = 20591424. Its totient is φ = 3922160.

The previous prime is 9805409. The next prime is 9805457. The reversal of 9805420 is 245089.

It is a happy number.

It is a super-2 number, since 2×9805420² = 192292522752800, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 245116 + ... + 245155.

It is an arithmetic number, because the mean of its divisors is an integer number (1715952).

Almost surely, 2^9805420 is an apocalyptic number.

It is an amenable number.

9805420 is an abundant number, since it is smaller than the sum of its proper divisors (10786004).

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

9805420 is a wasteful number, since it uses less digits than its factorization.

9805420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490280 (or 490278 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 9805420 is about 3131.3607265852. The cubic root of 9805420 is about 214.0369400813.

It can be divided in two parts, 980 and 5420, that added together give a square (6400 = 80²).

The spelling of 9805420 in words is "nine million, eight hundred five thousand, four hundred twenty".