142448236 has 24 divisors (see below), whose sum is σ = 301656096. Its totient is φ = 57457920.

The previous prime is 142448191. The next prime is 142448239. The reversal of 142448236 is 632844241.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (142448239) 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, 149155 + ... + 150106.

It is an arithmetic number, because the mean of its divisors is an integer number (12569004).

Almost surely, 2^142448236 is an apocalyptic number.

It is an amenable number.

142448236 is an abundant number, since it is smaller than the sum of its proper divisors (159207860).

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

142448236 is a wasteful number, since it uses less digits than its factorization.

142448236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299289 (or 299287 counting only the distinct ones).

The product of its digits is 36864, while the sum is 34.

The square root of 142448236 is about 11935.1680340077. The cubic root of 142448236 is about 522.2587101980.

The spelling of 142448236 in words is "one hundred forty-two million, four hundred forty-eight thousand, two hundred thirty-six".