2750220 has 96 divisors (see below), whose sum is σ = 9354240. Its totient is φ = 665280.

The previous prime is 2750219. The next prime is 2750249. The reversal of 2750220 is 220572.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2750193 and 2750202.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5709 + ... + 6171.

It is an arithmetic number, because the mean of its divisors is an integer number (97440).

2^2750220 is an apocalyptic number.

2750220 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 2750220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4677120).

2750220 is an abundant number, since it is smaller than the sum of its proper divisors (6604020).

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

2750220 is a wasteful number, since it uses less digits than its factorization.

2750220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492 (or 484 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 18.

The square root of 2750220 is about 1658.3787263469. The cubic root of 2750220 is about 140.1057024856.

Adding to 2750220 its reverse (220572), we get a palindrome (2970792).

The spelling of 2750220 in words is "two million, seven hundred fifty thousand, two hundred twenty".