10988440 has 16 divisors (see below), whose sum is σ = 24724080. Its totient is φ = 4395360.

The previous prime is 10988429. The next prime is 10988447. The reversal of 10988440 is 4488901.

It is a junction number, because it is equal to n+sod(n) for n = 10988396 and 10988405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10988447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137316 + ... + 137395.

It is an arithmetic number, because the mean of its divisors is an integer number (1545255).

Almost surely, 2^10988440 is an apocalyptic number.

10988440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10988440 is an abundant number, since it is smaller than the sum of its proper divisors (13735640).

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

10988440 is a wasteful number, since it uses less digits than its factorization.

10988440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274722 (or 274718 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 10988440 is about 3314.8815966788. The cubic root of 10988440 is about 222.3200750535.

The spelling of 10988440 in words is "ten million, nine hundred eighty-eight thousand, four hundred forty".