2992220 has 96 divisors (see below), whose sum is σ = 8225280. Its totient is φ = 887040.

The previous prime is 2992219. The next prime is 2992229. The reversal of 2992220 is 222992.

2992220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 2992220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2992229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44627 + ... + 44693.

It is an arithmetic number, because the mean of its divisors is an integer number (85680).

2^2992220 is an apocalyptic number.

2992220 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 2992220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4112640).

2992220 is an abundant number, since it is smaller than the sum of its proper divisors (5233060).

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

2992220 is a wasteful number, since it uses less digits than its factorization.

With its successor (2992221) it forms a Ruth-Aaron pair, since the sum of their prime factors is the same (123).

2992220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123 (or 121 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 2992220 is about 1729.8034570436. The cubic root of 2992220 is about 144.1001746382.

The spelling of 2992220 in words is "two million, nine hundred ninety-two thousand, two hundred twenty".