1173888 has 48 divisors (see below), whose sum is σ = 3381300. Its totient is φ = 390912.

The previous prime is 1173883. The next prime is 1173917. The reversal of 1173888 is 8883711.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1173881) 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, 643 + ... + 1661.

2^1173888 is an apocalyptic number.

1173888 is a gapful number since it is divisible by the number (18) 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 1173888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1690650).

1173888 is an abundant number, since it is smaller than the sum of its proper divisors (2207412).

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

1173888 is a wasteful number, since it uses less digits than its factorization.

1173888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1039 (or 1024 counting only the distinct ones).

The product of its digits is 10752, while the sum is 36.

The square root of 1173888 is about 1083.4611206684. The cubic root of 1173888 is about 105.4894159175.

It can be divided in two parts, 117 and 3888, that added together give a triangular number (4005 = T₈₉).

The spelling of 1173888 in words is "one million, one hundred seventy-three thousand, eight hundred eighty-eight".