2752220 has 24 divisors (see below), whose sum is σ = 5813808. Its totient is φ = 1094400.

The previous prime is 2752219. The next prime is 2752223. The reversal of 2752220 is 222572.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 2752192 and 2752201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2752223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4535 + ... + 5105.

It is an arithmetic number, because the mean of its divisors is an integer number (242242).

2^2752220 is an apocalyptic number.

2752220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2752220 is an abundant number, since it is smaller than the sum of its proper divisors (3061588).

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

2752220 is a wasteful number, since it uses less digits than its factorization.

2752220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 821 (or 819 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 20.

The square root of 2752220 is about 1658.9816153291. The cubic root of 2752220 is about 140.1396565581.

Adding to 2752220 its reverse (222572), we get a palindrome (2974792).

The spelling of 2752220 in words is "two million, seven hundred fifty-two thousand, two hundred twenty".