1211488 has 36 divisors (see below), whose sum is σ = 2553012. Its totient is φ = 565760.

The previous prime is 1211477. The next prime is 1211489. The reversal of 1211488 is 8841121.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211489) 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, 9183 + ... + 9313.

It is an arithmetic number, because the mean of its divisors is an integer number (70917).

2^1211488 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 1211488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1276506).

1211488 is an abundant number, since it is smaller than the sum of its proper divisors (1341524).

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

1211488 is a wasteful number, since it uses less digits than its factorization.

1211488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175 (or 150 counting only the distinct ones).

The product of its digits is 512, while the sum is 25.

The square root of 1211488 is about 1100.6761558242. The cubic root of 1211488 is about 106.6038866684.

The spelling of 1211488 in words is "one million, two hundred eleven thousand, four hundred eighty-eight".