2750280 has 128 divisors (see below), whose sum is σ = 9313920. Its totient is φ = 645120.

The previous prime is 2750263. The next prime is 2750287. The reversal of 2750280 is 820572.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a d-powerful number, because it can be written as 2⁴ + 7³ + 5⁸ + 0 + 2²¹ + 8⁶ + 0 .

It is a self number, because there is not a number n which added to its sum of digits gives 2750280.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2750287) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 63939 + ... + 63981.

It is an arithmetic number, because the mean of its divisors is an integer number (72765).

2^2750280 is an apocalyptic number.

2750280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2750280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4656960).

2750280 is an abundant number, since it is smaller than the sum of its proper divisors (6563640).

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

2750280 is a wasteful number, since it uses less digits than its factorization.

2750280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111 (or 107 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 2750280 is about 1658.3968162053. The cubic root of 2750280 is about 140.1067213472.

The spelling of 2750280 in words is "two million, seven hundred fifty thousand, two hundred eighty".