9881420 has 24 divisors (see below), whose sum is σ = 21972384. Its totient is φ = 3719936.

The previous prime is 9881419. The next prime is 9881429. The reversal of 9881420 is 241889.

It is a happy number.

9881420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×9881420² = 195284922432800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9881429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14192 + ... + 14871.

It is an arithmetic number, because the mean of its divisors is an integer number (915516).

Almost surely, 2^9881420 is an apocalyptic number.

It is an amenable number.

9881420 is an abundant number, since it is smaller than the sum of its proper divisors (12090964).

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

9881420 is a wasteful number, since it uses less digits than its factorization.

9881420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29089 (or 29087 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 9881420 is about 3143.4726020756. The cubic root of 9881420 is about 214.5885044365.

It can be divided in two parts, 9881 and 420, that added together give a palindrome (10301).

The spelling of 9881420 in words is "nine million, eight hundred eighty-one thousand, four hundred twenty".