2277872 has 40 divisors (see below), whose sum is σ = 4761600. Its totient is φ = 1052352.

The previous prime is 2277871. The next prime is 2277883. The reversal of 2277872 is 2787722.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2277871) 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, 17873 + ... + 17999.

It is an arithmetic number, because the mean of its divisors is an integer number (119040).

2^2277872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2277872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2380800).

2277872 is an abundant number, since it is smaller than the sum of its proper divisors (2483728).

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

2277872 is a wasteful number, since it uses less digits than its factorization.

2277872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213 (or 207 counting only the distinct ones).

The product of its digits is 21952, while the sum is 35.

The square root of 2277872 is about 1509.2620713448. The cubic root of 2277872 is about 131.5759270830.

The spelling of 2277872 in words is "two million, two hundred seventy-seven thousand, eight hundred seventy-two".