1149888 has 56 divisors (see below), whose sum is σ = 3127248. Its totient is φ = 372736.

The previous prime is 1149887. The next prime is 1149901. The reversal of 1149888 is 8889411.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1149881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10120 + ... + 10232.

2^1149888 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 1149888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1563624).

1149888 is an abundant number, since it is smaller than the sum of its proper divisors (1977360).

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

1149888 is a wasteful number, since it uses less digits than its factorization.

1149888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181 (or 171 counting only the distinct ones).

The product of its digits is 18432, while the sum is 39.

The square root of 1149888 is about 1072.3283079356. The cubic root of 1149888 is about 104.7655540117.

The spelling of 1149888 in words is "one million, one hundred forty-nine thousand, eight hundred eighty-eight".