1147888 has 40 divisors (see below), whose sum is σ = 2619872. Its totient is φ = 476928.

The previous prime is 1147843. The next prime is 1147889. The reversal of 1147888 is 8887411.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a nude number because it is divisible by every one of its digits.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1147889) 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, 4006 + ... + 4282.

2^1147888 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 1147888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1309936).

1147888 is an abundant number, since it is smaller than the sum of its proper divisors (1471984).

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

1147888 is a wasteful number, since it uses less digits than its factorization.

1147888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329 (or 323 counting only the distinct ones).

The product of its digits is 14336, while the sum is 37.

The square root of 1147888 is about 1071.3953518660. The cubic root of 1147888 is about 104.7047791928.

The spelling of 1147888 in words is "one million, one hundred forty-seven thousand, eight hundred eighty-eight".