2122830 has 48 divisors (see below), whose sum is σ = 5597280. Its totient is φ = 558144.

The previous prime is 2122823. The next prime is 2122837. The reversal of 2122830 is 382212.

It is a happy number.

2122830 is a nontrivial binomial coefficient, being equal to C(2061, 2).

It is an interprime number because it is at equal distance from previous prime (2122823) and next prime (2122837).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122837) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9156 + ... + 9384.

It is an arithmetic number, because the mean of its divisors is an integer number (116610).

2^2122830 is an apocalyptic number.

2122830 is the 2060-th triangular number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2122830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2798640).

2122830 is an abundant number, since it is smaller than the sum of its proper divisors (3474450).

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

2122830 is a wasteful number, since it uses less digits than its factorization.

2122830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345 (or 342 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 2122830 is about 1456.9934797383. The cubic root of 2122830 is about 128.5203024238.

The spelling of 2122830 in words is "two million, one hundred twenty-two thousand, eight hundred thirty".