10881438 has 32 divisors (see below), whose sum is σ = 23500800. Its totient is φ = 3348576.

The previous prime is 10881427. The next prime is 10881439. The reversal of 10881438 is 83418801.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 10881399 and 10881408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10881439) by changing a digit.

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, 2643 + ... + 5361.

It is an arithmetic number, because the mean of its divisors is an integer number (734400).

Almost surely, 2^10881438 is an apocalyptic number.

10881438 is an abundant number, since it is smaller than the sum of its proper divisors (12619362).

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

10881438 is a wasteful number, since it uses less digits than its factorization.

10881438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2776.

The product of its (nonzero) digits is 6144, while the sum is 33.

The square root of 10881438 is about 3298.7024721851. The cubic root of 10881438 is about 221.5960921300.

The spelling of 10881438 in words is "ten million, eight hundred eighty-one thousand, four hundred thirty-eight".