143642344 has 32 divisors (see below), whose sum is σ = 282758400. Its totient is φ = 68319360.

The previous prime is 143642339. The next prime is 143642347. The reversal of 143642344 is 443246341.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (143642347) 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, 9724 + ... + 19540.

It is an arithmetic number, because the mean of its divisors is an integer number (8836200).

Almost surely, 2^143642344 is an apocalyptic number.

It is an amenable number.

143642344 is a deficient number, since it is larger than the sum of its proper divisors (139116056).

143642344 is a wasteful number, since it uses less digits than its factorization.

143642344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9913 (or 9909 counting only the distinct ones).

The product of its digits is 27648, while the sum is 31.

The square root of 143642344 is about 11985.0884018434. The cubic root of 143642344 is about 523.7139728353.

Adding to 143642344 its reverse (443246341), we get a palindrome (586888685).

The spelling of 143642344 in words is "one hundred forty-three million, six hundred forty-two thousand, three hundred forty-four".