2228156 has 48 divisors (see below), whose sum is σ = 4902912. Its totient is φ = 864000.

The previous prime is 2228153. The next prime is 2228159. The reversal of 2228156 is 6518222.

2228156 = 354² + 355² + ... + 370².

It is an interprime number because it is at equal distance from previous prime (2228153) and next prime (2228159).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2228153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14681 + ... + 14831.

It is an arithmetic number, because the mean of its divisors is an integer number (102144).

2^2228156 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 2228156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2451456).

2228156 is an abundant number, since it is smaller than the sum of its proper divisors (2674756).

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

2228156 is a wasteful number, since it uses less digits than its factorization.

2228156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210 (or 208 counting only the distinct ones).

The product of its digits is 1920, while the sum is 26.

The square root of 2228156 is about 1492.7009077508. The cubic root of 2228156 is about 130.6116345841.

The spelling of 2228156 in words is "two million, two hundred twenty-eight thousand, one hundred fifty-six".