1148940 has 72 divisors (see below), whose sum is σ = 3760848. Its totient is φ = 282240.

The previous prime is 1148933. The next prime is 1148941. The reversal of 1148940 is 498411.

It is not an unprimeable number, because it can be changed into a prime (1148941) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2095 + ... + 2585.

It is an arithmetic number, because the mean of its divisors is an integer number (52234).

2^1148940 is an apocalyptic number.

1148940 is a gapful number since it is divisible by the number (10) 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 1148940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1880424).

1148940 is an abundant number, since it is smaller than the sum of its proper divisors (2611908).

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

1148940 is a wasteful number, since it uses less digits than its factorization.

1148940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519 (or 514 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 1148940 is about 1071.8861879883. The cubic root of 1148940 is about 104.7367555399.

The spelling of 1148940 in words is "one million, one hundred forty-eight thousand, nine hundred forty".