143420444 has 12 divisors (see below), whose sum is σ = 251244504. Its totient is φ = 71636304.

The previous prime is 143420429. The next prime is 143420447. The reversal of 143420444 is 444024341.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143420447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13994 + ... + 21969.

It is an arithmetic number, because the mean of its divisors is an integer number (20937042).

Almost surely, 2^143420444 is an apocalyptic number.

It is an amenable number.

143420444 is a deficient number, since it is larger than the sum of its proper divisors (107824060).

143420444 is a wasteful number, since it uses less digits than its factorization.

143420444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36964 (or 36962 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 26.

The square root of 143420444 is about 11975.8274870674. The cubic root of 143420444 is about 523.4441544781. Note that the first 3 decimals are identical.

Adding to 143420444 its reverse (444024341), we get a palindrome (587444785).

The spelling of 143420444 in words is "one hundred forty-three million, four hundred twenty thousand, four hundred forty-four".