142343444 has 12 divisors (see below), whose sum is σ = 257136768. Its totient is φ = 68875800.

The previous prime is 142343419. The next prime is 142343449. The reversal of 142343444 is 444343241.

It is a happy number.

It is a super-2 number, since 2×142343444² = 40523312099562272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142343449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 573842 + ... + 574089.

It is an arithmetic number, because the mean of its divisors is an integer number (21428064).

Almost surely, 2^142343444 is an apocalyptic number.

It is an amenable number.

142343444 is a deficient number, since it is larger than the sum of its proper divisors (114793324).

142343444 is a wasteful number, since it uses less digits than its factorization.

142343444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1147966 (or 1147964 counting only the distinct ones).

The product of its digits is 18432, while the sum is 29.

The square root of 142343444 is about 11930.7771750209. Note that the first 3 decimals coincide. The cubic root of 142343444 is about 522.1306122959.

Adding to 142343444 its reverse (444343241), we get a palindrome (586686685).

The spelling of 142343444 in words is "one hundred forty-two million, three hundred forty-three thousand, four hundred forty-four".