1443320442 has 12 divisors (see below), whose sum is σ = 3127194330. Its totient is φ = 481106808.

The previous prime is 1443320429. The next prime is 1443320477. The reversal of 1443320442 is 2440233441.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 828230841 + 615089601 = 28779^2 + 24801^2 .

It is a super-3 number, since 3×1443320442³ (a number of 28 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 40092217 + ... + 40092252.

Almost surely, 2^1443320442 is an apocalyptic number.

1443320442 is an abundant number, since it is smaller than the sum of its proper divisors (1683873888).

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

1443320442 is a wasteful number, since it uses less digits than its factorization.

1443320442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80184477 (or 80184474 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

The square root of 1443320442 is about 37991.0573951292. The cubic root of 1443320442 is about 1130.1105282546.

Adding to 1443320442 its reverse (2440233441), we get a palindrome (3883553883).

The spelling of 1443320442 in words is "one billion, four hundred forty-three million, three hundred twenty thousand, four hundred forty-two".