10644720 has 80 divisors (see below), whose sum is σ = 34953120. Its totient is φ = 2670592.

The previous prime is 10644691. The next prime is 10644743. The reversal of 10644720 is 2744601.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×10644720² = 226620127756800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2776 + ... + 5384.

It is an arithmetic number, because the mean of its divisors is an integer number (436914).

Almost surely, 2^10644720 is an apocalyptic number.

10644720 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 10644720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17476560).

10644720 is an abundant number, since it is smaller than the sum of its proper divisors (24308400).

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

10644720 is a wasteful number, since it uses less digits than its factorization.

10644720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2642 (or 2636 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 10644720 is about 3262.6247102601. The cubic root of 10644720 is about 219.9774081484.

The spelling of 10644720 in words is "ten million, six hundred forty-four thousand, seven hundred twenty".