10881428 has 18 divisors (see below), whose sum is σ = 20230686. Its totient is φ = 5120128.

The previous prime is 10881427. The next prime is 10881439. The reversal of 10881428 is 82418801.

It can be written as a sum of positive squares in 3 ways, for example, as 8282884 + 2598544 = 2878^2 + 1612^2 .

It is a junction number, because it is equal to n+sod(n) for n = 10881394 and 10881403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10881427) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3551 + ... + 5862.

It is an arithmetic number, because the mean of its divisors is an integer number (1123927).

Almost surely, 2^10881428 is an apocalyptic number.

It is an amenable number.

10881428 is a deficient number, since it is larger than the sum of its proper divisors (9349258).

10881428 is a wasteful number, since it uses less digits than its factorization.

10881428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9451 (or 9432 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 32.

The square root of 10881428 is about 3298.7009564372. The cubic root of 10881428 is about 221.5960242480.

The spelling of 10881428 in words is "ten million, eight hundred eighty-one thousand, four hundred twenty-eight".