2276388 has 36 divisors (see below), whose sum is σ = 5913180. Its totient is φ = 737856.

The previous prime is 2276383. The next prime is 2276389. The reversal of 2276388 is 8836722.

It is a happy number.

2276388 is a `hidden beast` number, since 2 + 276 + 388 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1272384 + 1004004 = 1128^2 + 1002^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-3 number, since 3×2276388³ = 35388333986510529216, which contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (2276383) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 478 + ... + 2186.

It is an arithmetic number, because the mean of its divisors is an integer number (164255).

2^2276388 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 2276388, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2956590).

2276388 is an abundant number, since it is smaller than the sum of its proper divisors (3636792).

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

2276388 is a wasteful number, since it uses less digits than its factorization.

2276388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1756 (or 1751 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 2276388 is about 1508.7703602603. The cubic root of 2276388 is about 131.5473476173.

The spelling of 2276388 in words is "two million, two hundred seventy-six thousand, three hundred eighty-eight".