2722830 has 64 divisors (see below), whose sum is σ = 7354368. Its totient is φ = 639360.

The previous prime is 2722801. The next prime is 2722831. The reversal of 2722830 is 382272.

It is a self number, because there is not a number n which added to its sum of digits gives 2722830.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2722831) 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, 12099 + ... + 12321.

It is an arithmetic number, because the mean of its divisors is an integer number (114912).

2^2722830 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2722830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3677184).

2722830 is an abundant number, since it is smaller than the sum of its proper divisors (4631538).

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

2722830 is a wasteful number, since it uses less digits than its factorization.

2722830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 2722830 is about 1650.0999969699. The cubic root of 2722830 is about 139.6390361082.

The spelling of 2722830 in words is "two million, seven hundred twenty-two thousand, eight hundred thirty".