1141640 has 16 divisors (see below), whose sum is σ = 2568780. Its totient is φ = 456640.

The previous prime is 1141633. The next prime is 1141649. The reversal of 1141640 is 461411.

It can be written as a sum of positive squares in 2 ways, for example, as 1094116 + 47524 = 1046^2 + 218^2 .

It is not an unprimeable number, because it can be changed into a prime (1141649) 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, 14231 + ... + 14310.

2^1141640 is an apocalyptic number.

1141640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1141640 is an abundant number, since it is smaller than the sum of its proper divisors (1427140).

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

1141640 is a wasteful number, since it uses less digits than its factorization.

1141640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28552 (or 28548 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1141640 is about 1068.4755495565. The cubic root of 1141640 is about 104.5144627160.

The spelling of 1141640 in words is "one million, one hundred forty-one thousand, six hundred forty".