1443711340 has 12 divisors (see below), whose sum is σ = 3031793856. Its totient is φ = 577484528.

The previous prime is 1443711337. The next prime is 1443711389. The reversal of 1443711340 is 431173441.

It is a junction number, because it is equal to n+sod(n) for n = 1443711299 and 1443711308.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36092764 + ... + 36092803.

It is an arithmetic number, because the mean of its divisors is an integer number (252649488).

Almost surely, 2^1443711340 is an apocalyptic number.

1443711340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1443711340 is an abundant number, since it is smaller than the sum of its proper divisors (1588082516).

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

1443711340 is a wasteful number, since it uses less digits than its factorization.

1443711340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72185576 (or 72185574 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 1443711340 is about 37996.2016522705. The cubic root of 1443711340 is about 1130.2125425769.

Adding to 1443711340 its reverse (431173441), we get a palindrome (1874884781).

The spelling of 1443711340 in words is "one billion, four hundred forty-three million, seven hundred eleven thousand, three hundred forty".