2722432 has 16 divisors (see below), whose sum is σ = 5423850. Its totient is φ = 1361152.

The previous prime is 2722427. The next prime is 2722439. The reversal of 2722432 is 2342272.

It can be written as a sum of positive squares in only one way, i.e., 2238016 + 484416 = 1496^2 + 696^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (2722439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10507 + ... + 10762.

2^2722432 is an apocalyptic number.

It is an amenable number.

2722432 is a deficient number, since it is larger than the sum of its proper divisors (2701418).

2722432 is an equidigital number, since it uses as much as digits as its factorization.

2722432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21283 (or 21271 counting only the distinct ones).

The product of its digits is 1344, while the sum is 22.

The square root of 2722432 is about 1649.9793938107. The cubic root of 2722432 is about 139.6322320300.

It can be divided in two parts, 272 and 2432, that added together give a square (2704 = 52²).

The spelling of 2722432 in words is "two million, seven hundred twenty-two thousand, four hundred thirty-two".