1073721304 has 16 divisors (see below), whose sum is σ = 2033161920. Its totient is φ = 531544800.

The previous prime is 1073721289. The next prime is 1073721307. The reversal of 1073721304 is 4031273701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1073721307) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 663624 + ... + 665239.

It is an arithmetic number, because the mean of its divisors is an integer number (127072620).

Almost surely, 2^1073721304 is an apocalyptic number.

It is an amenable number.

1073721304 is a deficient number, since it is larger than the sum of its proper divisors (959440616).

1073721304 is a wasteful number, since it uses less digits than its factorization.

1073721304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1328970 (or 1328966 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 28.

The square root of 1073721304 is about 32767.6868881525. The cubic root of 1073721304 is about 1023.9934768261.

It can be divided in two parts, 10737 and 21304, that added together give a square (32041 = 179²).

The spelling of 1073721304 in words is "one billion, seventy-three million, seven hundred twenty-one thousand, three hundred four".