2122872 has 32 divisors (see below), whose sum is σ = 5346000. Its totient is φ = 702464.

The previous prime is 2122859. The next prime is 2122873. The reversal of 2122872 is 2782212.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122873) 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, 4504 + ... + 4952.

2^2122872 is an apocalyptic number.

It is an amenable number.

2122872 is an abundant number, since it is smaller than the sum of its proper divisors (3223128).

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

2122872 is a wasteful number, since it uses less digits than its factorization.

2122872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655 (or 651 counting only the distinct ones).

The product of its digits is 896, while the sum is 24.

The square root of 2122872 is about 1457.0078929093. The cubic root of 2122872 is about 128.5211500058.

The spelling of 2122872 in words is "two million, one hundred twenty-two thousand, eight hundred seventy-two".