2122456 has 32 divisors (see below), whose sum is σ = 4596480. Its totient is φ = 900000.

The previous prime is 2122451. The next prime is 2122459. The reversal of 2122456 is 6542212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122451) 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, 8331 + ... + 8581.

It is an arithmetic number, because the mean of its divisors is an integer number (143640).

2^2122456 is an apocalyptic number.

It is an amenable number.

2122456 is an abundant number, since it is smaller than the sum of its proper divisors (2474024).

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

2122456 is a wasteful number, since it uses less digits than its factorization.

2122456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415 (or 411 counting only the distinct ones).

The product of its digits is 960, while the sum is 22.

The square root of 2122456 is about 1456.8651275942. The cubic root of 2122456 is about 128.5127544154.

Adding to 2122456 its reverse (6542212), we get a palindrome (8664668).

The spelling of 2122456 in words is "two million, one hundred twenty-two thousand, four hundred fifty-six".