2721232 has 20 divisors (see below), whose sum is σ = 5373540. Its totient is φ = 1334528.

The previous prime is 2721227. The next prime is 2721247. The reversal of 2721232 is 2321272.

It can be written as a sum of positive squares in 2 ways, for example, as 1752976 + 968256 = 1324^2 + 984^2 .

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 757 + ... + 2452.

It is an arithmetic number, because the mean of its divisors is an integer number (268677).

2^2721232 is an apocalyptic number.

It is an amenable number.

2721232 is a deficient number, since it is larger than the sum of its proper divisors (2652308).

2721232 is a wasteful number, since it uses less digits than its factorization.

2721232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3270 (or 3264 counting only the distinct ones).

The product of its digits is 336, while the sum is 19.

The square root of 2721232 is about 1649.6157128253. The cubic root of 2721232 is about 139.6117132067.

The spelling of 2721232 in words is "two million, seven hundred twenty-one thousand, two hundred thirty-two".