10720256 has 66 divisors (see below), whose sum is σ = 23397210. Its totient is φ = 4902912.

The previous prime is 10720253. The next prime is 10720261. The reversal of 10720256 is 65202701.

It can be written as a sum of positive squares in only one way, i.e., 9241600 + 1478656 = 3040^2 + 1216^2 .

It is a super-2 number, since 2×10720256² = 229847777411072, which contains 22 as substring.

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10720253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 369650 + ... + 369678.

Almost surely, 2^10720256 is an apocalyptic number.

10720256 is a gapful number since it is divisible by the number (16) 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 10720256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11698605).

10720256 is an abundant number, since it is smaller than the sum of its proper divisors (12676954).

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

10720256 is an equidigital number, since it uses as much as digits as its factorization.

10720256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87 (or 50 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 10720256 is about 3274.1802027378. The cubic root of 10720256 is about 220.4965094581.

Adding to 10720256 its reverse (65202701), we get a palindrome (75922957).

The spelling of 10720256 in words is "ten million, seven hundred twenty thousand, two hundred fifty-six".