2774288 has 30 divisors (see below), whose sum is σ = 5912382. Its totient is φ = 1260160.

The previous prime is 2774287. The next prime is 2774293. The reversal of 2774288 is 8824772.

It can be written as a sum of positive squares in only one way, i.e., 2650384 + 123904 = 1628^2 + 352^2 .

It is not an unprimeable number, because it can be changed into a prime (2774287) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1220 + ... + 2652.

2^2774288 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 2774288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2956191).

2774288 is an abundant number, since it is smaller than the sum of its proper divisors (3138094).

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

2774288 is a wasteful number, since it uses less digits than its factorization.

2774288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1463 (or 1446 counting only the distinct ones).

The product of its digits is 50176, while the sum is 38.

The square root of 2774288 is about 1665.6194043058. The cubic root of 2774288 is about 140.5132183627.

The spelling of 2774288 in words is "two million, seven hundred seventy-four thousand, two hundred eighty-eight".