2122842 has 8 divisors (see below), whose sum is σ = 4245696. Its totient is φ = 707612.

The previous prime is 2122837. The next prime is 2122843. The reversal of 2122842 is 2482212.

It is a happy number.

2122842 is nontrivially palindromic in base 9.

It is a sphenic number, since it is the product of 3 distinct primes.

2122842 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 176898 + ... + 176909.

It is an arithmetic number, because the mean of its divisors is an integer number (530712).

2^2122842 is an apocalyptic number.

2122842 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2122842 is a wasteful number, since it uses less digits than its factorization.

2122842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353812.

The product of its digits is 512, while the sum is 21.

The square root of 2122842 is about 1456.9975978017. The cubic root of 2122842 is about 128.5205445912.

The spelling of 2122842 in words is "two million, one hundred twenty-two thousand, eight hundred forty-two".