10721300 has 36 divisors (see below), whose sum is σ = 24073980. Its totient is φ = 4139520.

The previous prime is 10721297. The next prime is 10721309. The reversal of 10721300 is 312701.

It can be written as a sum of positive squares in 6 ways, for example, as 1406596 + 9314704 = 1186^2 + 3052^2 .

It is a super-2 number, since 2×10721300² = 229892547380000, which contains 22 as substring.

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, 1052 + ... + 4748.

Almost surely, 2^10721300 is an apocalyptic number.

10721300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10721300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12036990).

10721300 is an abundant number, since it is smaller than the sum of its proper divisors (13352680).

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

10721300 is a wasteful number, since it uses less digits than its factorization.

10721300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3740 (or 3733 counting only the distinct ones).

The product of its (nonzero) digits is 42, while the sum is 14.

The square root of 10721300 is about 3274.3396280777. The cubic root of 10721300 is about 220.5036669639.

The spelling of 10721300 in words is "ten million, seven hundred twenty-one thousand, three hundred".