2733220 has 36 divisors (see below), whose sum is σ = 6679260. Its totient is φ = 936768.

The previous prime is 2733197. The next prime is 2733233. The reversal of 2733220 is 223372.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1350244 + 1382976 = 1162^2 + 1176^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 415 + ... + 2374.

It is an arithmetic number, because the mean of its divisors is an integer number (185535).

2^2733220 is an apocalyptic number.

2733220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2733220 is an abundant number, since it is smaller than the sum of its proper divisors (3946040).

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

2733220 is a wasteful number, since it uses less digits than its factorization.

2733220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2812 (or 2803 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 19.

The square root of 2733220 is about 1653.2452933549. The cubic root of 2733220 is about 139.8164260619.

Adding to 2733220 its reverse (223372), we get a palindrome (2956592).

The spelling of 2733220 in words is "two million, seven hundred thirty-three thousand, two hundred twenty".