1141840 has 40 divisors (see below), whose sum is σ = 3035520. Its totient is φ = 391296.

The previous prime is 1141837. The next prime is 1141849. The reversal of 1141840 is 481411.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1141849) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 460 + ... + 1579.

It is an arithmetic number, because the mean of its divisors is an integer number (75888).

2^1141840 is an apocalyptic number.

1141840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1141840 is an abundant number, since it is smaller than the sum of its proper divisors (1893680).

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

1141840 is a wasteful number, since it uses less digits than its factorization.

1141840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2059 (or 2053 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

The square root of 1141840 is about 1068.5691367431. The cubic root of 1141840 is about 104.5205655365.

The spelling of 1141840 in words is "one million, one hundred forty-one thousand, eight hundred forty".