1443200420 has 12 divisors (see below), whose sum is σ = 3030720924. Its totient is φ = 577280160.

The previous prime is 1443200419. The next prime is 1443200453. The reversal of 1443200420 is 240023441.

It can be written as a sum of positive squares in 2 ways, for example, as 994014784 + 449185636 = 31528^2 + 21194^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 72160021 = 1443200420 / (1 + 4 + 4 + 3 + 2 + 0 + 0 + 4 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 1443200392 and 1443200401.

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, 36079991 + ... + 36080030.

It is an arithmetic number, because the mean of its divisors is an integer number (252560077).

Almost surely, 2^1443200420 is an apocalyptic number.

1443200420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1443200420 is an abundant number, since it is smaller than the sum of its proper divisors (1587520504).

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

1443200420 is a wasteful number, since it uses less digits than its factorization.

1443200420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72160030 (or 72160028 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 1443200420 is about 37989.4777537149. The cubic root of 1443200420 is about 1130.0792019042.

Adding to 1443200420 its reverse (240023441), we get a palindrome (1683223861).

The spelling of 1443200420 in words is "one billion, four hundred forty-three million, two hundred thousand, four hundred twenty".