1181488 has 60 divisors (see below), whose sum is σ = 2926152. Its totient is φ = 456960.

The previous prime is 1181473. The next prime is 1181501. The reversal of 1181488 is 8841811.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8556 + ... + 8692.

2^1181488 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 1181488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1463076).

1181488 is an abundant number, since it is smaller than the sum of its proper divisors (1744664).

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

1181488 is a wasteful number, since it uses less digits than its factorization.

1181488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170 (or 157 counting only the distinct ones).

The product of its digits is 2048, while the sum is 31.

The square root of 1181488 is about 1086.9627408518. The cubic root of 1181488 is about 105.7165800052.

The spelling of 1181488 in words is "one million, one hundred eighty-one thousand, four hundred eighty-eight".