1443451442 has 16 divisors (see below), whose sum is σ = 2200286592. Its totient is φ = 710065440.

The previous prime is 1443451421. The next prime is 1443451447. The reversal of 1443451442 is 2441543441.

It is a junction number, because it is equal to n+sod(n) for n = 1443451399 and 1443451408.

It is not an unprimeable number, because it can be changed into a prime (1443451447) 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, 58718 + ... + 79590.

It is an arithmetic number, because the mean of its divisors is an integer number (137517912).

Almost surely, 2^1443451442 is an apocalyptic number.

1443451442 is a deficient number, since it is larger than the sum of its proper divisors (756835150).

1443451442 is a wasteful number, since it uses less digits than its factorization.

1443451442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21433.

The product of its digits is 30720, while the sum is 32.

The square root of 1443451442 is about 37992.7814459537. The cubic root of 1443451442 is about 1130.1447179365.

Adding to 1443451442 its reverse (2441543441), we get a palindrome (3884994883).

The spelling of 1443451442 in words is "one billion, four hundred forty-three million, four hundred fifty-one thousand, four hundred forty-two".