10721304 has 48 divisors (see below), whose sum is σ = 31678920. Its totient is φ = 3248640.

The previous prime is 10721297. The next prime is 10721309. The reversal of 10721304 is 40312701.

It is a super-2 number, since 2×10721304² = 229892718920832, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10721309) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5977 + ... + 7560.

Almost surely, 2^10721304 is an apocalyptic number.

It is an amenable number.

10721304 is an abundant number, since it is smaller than the sum of its proper divisors (20957616).

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

10721304 is a wasteful number, since it uses less digits than its factorization.

10721304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13560 (or 13553 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 10721304 is about 3274.3402388878. The cubic root of 10721304 is about 220.5036943864.

It can be divided in two parts, 10721 and 304, that added together give a square (11025 = 105²).

The spelling of 10721304 in words is "ten million, seven hundred twenty-one thousand, three hundred four".