10988240 has 20 divisors (see below), whose sum is σ = 25547844. Its totient is φ = 4395264.

The previous prime is 10988221. The next prime is 10988249. The reversal of 10988240 is 4288901.

It is a happy number.

10988240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 3125824 + 7862416 = 1768^2 + 2804^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 10988197 and 10988206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10988249) 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, 68597 + ... + 68756.

Almost surely, 2^10988240 is an apocalyptic number.

10988240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10988240 is an abundant number, since it is smaller than the sum of its proper divisors (14559604).

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

10988240 is a wasteful number, since it uses less digits than its factorization.

10988240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137366 (or 137360 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 10988240 is about 3314.8514295516. The cubic root of 10988240 is about 222.3187262335.

The spelling of 10988240 in words is "ten million, nine hundred eighty-eight thousand, two hundred forty".