1443140 has 24 divisors (see below), whose sum is σ = 3084480. Its totient is φ = 567008.

The previous prime is 1443139. The next prime is 1443151. The reversal of 1443140 is 413441.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 569 + ... + 1791.

It is an arithmetic number, because the mean of its divisors is an integer number (128520).

2^1443140 is an apocalyptic number.

1443140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1443140 is an abundant number, since it is smaller than the sum of its proper divisors (1641340).

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

1443140 is a wasteful number, since it uses less digits than its factorization.

1443140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1291 (or 1289 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1443140 is about 1201.3076208865. The cubic root of 1443140 is about 113.0063431321.

Adding to 1443140 its reverse (413441), we get a palindrome (1856581).

The spelling of 1443140 in words is "one million, four hundred forty-three thousand, one hundred forty".