142423236 has 36 divisors (see below), whose sum is σ = 360705072. Its totient is φ = 47383344.

The previous prime is 142423213. The next prime is 142423241. The reversal of 142423236 is 632324241.

142423236 is a `hidden beast` number, since 1 + 4 + 2 + 423 + 236 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 16755 + ... + 23781.

Almost surely, 2^142423236 is an apocalyptic number.

It is an amenable number.

142423236 is an abundant number, since it is smaller than the sum of its proper divisors (218281836).

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

142423236 is a wasteful number, since it uses less digits than its factorization.

142423236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7600 (or 7595 counting only the distinct ones).

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

The square root of 142423236 is about 11934.1206630401. The cubic root of 142423236 is about 522.2281558671.

Adding to 142423236 its reverse (632324241), we get a palindrome (774747477).

The spelling of 142423236 in words is "one hundred forty-two million, four hundred twenty-three thousand, two hundred thirty-six".