10855720 has 16 divisors (see below), whose sum is σ = 24425460. Its totient is φ = 4342272.

The previous prime is 10855711. The next prime is 10855721. The reversal of 10855720 is 2755801.

It can be written as a sum of positive squares in 2 ways, for example, as 9998244 + 857476 = 3162^2 + 926^2 .

It is not an unprimeable number, because it can be changed into a prime (10855721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135657 + ... + 135736.

Almost surely, 2^10855720 is an apocalyptic number.

10855720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10855720 is an abundant number, since it is smaller than the sum of its proper divisors (13569740).

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

10855720 is a wasteful number, since it uses less digits than its factorization.

10855720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271404 (or 271400 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 28.

The square root of 10855720 is about 3294.8019667349. The cubic root of 10855720 is about 221.4213755156.

The spelling of 10855720 in words is "ten million, eight hundred fifty-five thousand, seven hundred twenty".