10721568 has 144 divisors (see below), whose sum is σ = 33784128. Its totient is φ = 2956800.

The previous prime is 10721549. The next prime is 10721569. The reversal of 10721568 is 86512701.

It is a super-2 number, since 2×10721568² = 229904040757248, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10721569) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 150973 + ... + 151043.

It is an arithmetic number, because the mean of its divisors is an integer number (234612).

Almost surely, 2^10721568 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10721568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16892064).

10721568 is an abundant number, since it is smaller than the sum of its proper divisors (23062560).

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

10721568 is a wasteful number, since it uses less digits than its factorization.

10721568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119 (or 100 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 30.

The square root of 10721568 is about 3274.3805521045. The cubic root of 10721568 is about 220.5055042563.

The spelling of 10721568 in words is "ten million, seven hundred twenty-one thousand, five hundred sixty-eight".