9992020 has 12 divisors (see below), whose sum is σ = 20983284. Its totient is φ = 3996800.

The previous prime is 9992009. The next prime is 9992029. The reversal of 9992020 is 202999.

9992020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 4145296 + 5846724 = 2036^2 + 2418^2 .

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9992029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 249781 + ... + 249820.

It is an arithmetic number, because the mean of its divisors is an integer number (1748607).

Almost surely, 2^9992020 is an apocalyptic number.

It is an amenable number.

9992020 is an abundant number, since it is smaller than the sum of its proper divisors (10991264).

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

9992020 is a wasteful number, since it uses less digits than its factorization.

9992020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499610 (or 499608 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 31.

The square root of 9992020 is about 3161.0156595626. The cubic root of 9992020 is about 215.3861457898.

The spelling of 9992020 in words is "nine million, nine hundred ninety-two thousand, twenty".