2922240 has 72 divisors (see below), whose sum is σ = 9345168. Its totient is φ = 778240.

The previous prime is 2922229. The next prime is 2922247. The reversal of 2922240 is 422292.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2922247) 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, 3460 + ... + 4220.

It is an arithmetic number, because the mean of its divisors is an integer number (129794).

2^2922240 is an apocalyptic number.

2922240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2922240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4672584).

2922240 is an abundant number, since it is smaller than the sum of its proper divisors (6422928).

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

2922240 is an equidigital number, since it uses as much as digits as its factorization.

2922240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 785 (or 771 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 2922240 is about 1709.4560538370. The cubic root of 2922240 is about 142.9679293004.

The spelling of 2922240 in words is "two million, nine hundred twenty-two thousand, two hundred forty".