9992290 has 64 divisors (see below), whose sum is σ = 23639040. Its totient is φ = 2946240.

The previous prime is 9992273. The next prime is 9992291. The reversal of 9992290 is 922999.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (9992291) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14289 + ... + 14971.

It is an arithmetic number, because the mean of its divisors is an integer number (369360).

Almost surely, 2^9992290 is an apocalyptic number.

9992290 is an abundant number, since it is smaller than the sum of its proper divisors (13646750).

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

9992290 is a wasteful number, since it uses less digits than its factorization.

9992290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 727.

The product of its (nonzero) digits is 26244, while the sum is 40.

The square root of 9992290 is about 3161.0583670663. The cubic root of 9992290 is about 215.3880857957.

It can be divided in two parts, 9 and 992290, that added together give a palindrome (992299).

The spelling of 9992290 in words is "nine million, nine hundred ninety-two thousand, two hundred ninety".