9290820 has 96 divisors (see below), whose sum is σ = 32449536. Its totient is φ = 1929600.

The previous prime is 9290803. The next prime is 9290843. The reversal of 9290820 is 280929.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3615 + ... + 5625.

It is an arithmetic number, because the mean of its divisors is an integer number (338016).

Almost surely, 2^9290820 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9290820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16224768).

9290820 is an abundant number, since it is smaller than the sum of its proper divisors (23158716).

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

9290820 is a wasteful number, since it uses less digits than its factorization.

9290820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2041 (or 2039 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 9290820 is about 3048.0846444940. The cubic root of 9290820 is about 210.2251553347.

The spelling of 9290820 in words is "nine million, two hundred ninety thousand, eight hundred twenty".