10891132 has 36 divisors (see below), whose sum is σ = 22366344. Its totient is φ = 4626720.

The previous prime is 10891099. The next prime is 10891147. The reversal of 10891132 is 23119801.

It is a junction number, because it is equal to n+sod(n) for n = 10891097 and 10891106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35323 + ... + 35629.

Almost surely, 2^10891132 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10891132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11183172).

10891132 is an abundant number, since it is smaller than the sum of its proper divisors (11475212).

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

10891132 is a wasteful number, since it uses less digits than its factorization.

10891132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506 (or 497 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 25.

The square root of 10891132 is about 3300.1715106946. The cubic root of 10891132 is about 221.6618773973.

The spelling of 10891132 in words is "ten million, eight hundred ninety-one thousand, one hundred thirty-two".