142306344 has 24 divisors (see below), whose sum is σ = 385413210. Its totient is φ = 47435424.

The previous prime is 142306343. The next prime is 142306369. The reversal of 142306344 is 443603241.

142306344 is a `hidden beast` number, since 1 + 4 + 23 + 0 + 634 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 133125444 + 9180900 = 11538^2 + 3030^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (142306343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 988167 + ... + 988310.

Almost surely, 2^142306344 is an apocalyptic number.

It is an amenable number.

142306344 is an abundant number, since it is smaller than the sum of its proper divisors (243106866).

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

142306344 is a wasteful number, since it uses less digits than its factorization.

142306344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1976489 (or 1976482 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 142306344 is about 11929.2222713805. Note that the first 4 decimals coincide. The cubic root of 142306344 is about 522.0852461299.

Adding to 142306344 its reverse (443603241), we get a palindrome (585909585).

The spelling of 142306344 in words is "one hundred forty-two million, three hundred six thousand, three hundred forty-four".