1141240 has 32 divisors (see below), whose sum is σ = 2602080. Its totient is φ = 450432.

The previous prime is 1141229. The next prime is 1141241. The reversal of 1141240 is 421411.

It is a self number, because there is not a number n which added to its sum of digits gives 1141240.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1141241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3982 + ... + 4258.

It is an arithmetic number, because the mean of its divisors is an integer number (81315).

2^1141240 is an apocalyptic number.

1141240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1141240 is an abundant number, since it is smaller than the sum of its proper divisors (1460840).

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

1141240 is a wasteful number, since it uses less digits than its factorization.

1141240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391 (or 387 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 1141240 is about 1068.2883505871. The cubic root of 1141240 is about 104.5022549363.

Adding to 1141240 its reverse (421411), we get a palindrome (1562651).

The spelling of 1141240 in words is "one million, one hundred forty-one thousand, two hundred forty".