142303432 has 8 divisors (see below), whose sum is σ = 266818950. Its totient is φ = 71151712.

The previous prime is 142303429. The next prime is 142303439. The reversal of 142303432 is 234303241.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 114361636 + 27941796 = 10694^2 + 5286^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (142303439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8893957 + ... + 8893972.

Almost surely, 2^142303432 is an apocalyptic number.

It is an amenable number.

142303432 is a deficient number, since it is larger than the sum of its proper divisors (124515518).

142303432 is a wasteful number, since it uses less digits than its factorization.

142303432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17787935 (or 17787931 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 142303432 is about 11929.1002175353. The cubic root of 142303432 is about 522.0816849802.

Adding to 142303432 its reverse (234303241), we get a palindrome (376606673).

The spelling of 142303432 in words is "one hundred forty-two million, three hundred three thousand, four hundred thirty-two".