2907228 has 48 divisors (see below), whose sum is σ = 7338240. Its totient is φ = 892800.

The previous prime is 2907227. The next prime is 2907239. The reversal of 2907228 is 8227092.

2907228 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 2907195 and 2907204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2907227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9193 + ... + 9503.

It is an arithmetic number, because the mean of its divisors is an integer number (152880).

2^2907228 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 2907228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3669120).

2907228 is an abundant number, since it is smaller than the sum of its proper divisors (4431012).

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

2907228 is a wasteful number, since it uses less digits than its factorization.

2907228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378 (or 376 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 2907228 is about 1705.0595297526. The cubic root of 2907228 is about 142.7226927400.

The spelling of 2907228 in words is "two million, nine hundred seven thousand, two hundred twenty-eight".