1141040 has 40 divisors (see below), whose sum is σ = 2812320. Its totient is φ = 429056.

The previous prime is 1141039. The next prime is 1141061. The reversal of 1141040 is 401411.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 941 + ... + 1779.

It is an arithmetic number, because the mean of its divisors is an integer number (70308).

2^1141040 is an apocalyptic number.

1141040 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 1141040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1406160).

1141040 is an abundant number, since it is smaller than the sum of its proper divisors (1671280).

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

1141040 is a wasteful number, since it uses less digits than its factorization.

1141040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 869 (or 863 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 1141040 is about 1068.1947388000. The cubic root of 1141040 is about 104.4961499768.

Adding to 1141040 its reverse (401411), we get a palindrome (1542451).

The spelling of 1141040 in words is "one million, one hundred forty-one thousand, forty".