1891152 has 60 divisors (see below), whose sum is σ = 5532384. Its totient is φ = 601920.

The previous prime is 1891147. The next prime is 1891163. The reversal of 1891152 is 2511981.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 3027 + ... + 3597.

2^1891152 is an apocalyptic number.

1891152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1891152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2766192).

1891152 is an abundant number, since it is smaller than the sum of its proper divisors (3641232).

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

1891152 is a wasteful number, since it uses less digits than its factorization.

1891152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 608 (or 599 counting only the distinct ones).

The product of its digits is 720, while the sum is 27.

The square root of 1891152 is about 1375.1916230111. The cubic root of 1891152 is about 123.6636741074.

The spelling of 1891152 in words is "one million, eight hundred ninety-one thousand, one hundred fifty-two".