722048 has 16 divisors (see below), whose sum is σ = 1438710. Its totient is φ = 360960.

The previous prime is 722047. The next prime is 722063. The reversal of 722048 is 840227.

It can be written as a sum of positive squares in only one way, i.e., 399424 + 322624 = 632^2 + 568^2 .

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

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 722048.

It is not an unprimeable number, because it can be changed into a prime (722047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2693 + ... + 2948.

2⁷²²⁰⁴⁸ is an apocalyptic number.

It is an amenable number.

722048 is a deficient number, since it is larger than the sum of its proper divisors (716662).

722048 is an equidigital number, since it uses as much as digits as its factorization.

722048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5655 (or 5643 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 23.

The square root of 722048 is about 849.7340760497. The cubic root of 722048 is about 89.7129951962.

It can be divided in two parts, 72 and 2048, that multiplied together give a square (147456 = 384²).

The spelling of 722048 in words is "seven hundred twenty-two thousand, forty-eight".