1143488 has 28 divisors (see below), whose sum is σ = 2404872. Its totient is φ = 537600.

The previous prime is 1143487. The next prime is 1143529. The reversal of 1143488 is 8843411.

It is a super-2 number, since 2×1143488² = 2615129612288, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1143488.

It is not an unprimeable number, because it can be changed into a prime (1143481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 563 + ... + 1613.

2^1143488 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 1143488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1202436).

1143488 is an abundant number, since it is smaller than the sum of its proper divisors (1261384).

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

1143488 is a wasteful number, since it uses less digits than its factorization.

1143488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1080 (or 1070 counting only the distinct ones).

The product of its digits is 3072, while the sum is 29.

The square root of 1143488 is about 1069.3399833542. The cubic root of 1143488 is about 104.5708256692.

Adding to 1143488 its reverse (8843411), we get a palindrome (9986899).

The spelling of 1143488 in words is "one million, one hundred forty-three thousand, four hundred eighty-eight".