142789284 has 48 divisors (see below), whose sum is σ = 403851840. Its totient is φ = 43269120.

The previous prime is 142789247. The next prime is 142789289. The reversal of 142789284 is 482987241.

It is not an unprimeable number, because it can be changed into a prime (142789289) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58909 + ... + 61284.

It is an arithmetic number, because the mean of its divisors is an integer number (8413580).

Almost surely, 2^142789284 is an apocalyptic number.

It is an amenable number.

142789284 is an abundant number, since it is smaller than the sum of its proper divisors (261062556).

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

142789284 is a wasteful number, since it uses less digits than its factorization.

142789284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120217 (or 120209 counting only the distinct ones).

The product of its digits is 258048, while the sum is 45.

The square root of 142789284 is about 11949.4470164941. The cubic root of 142789284 is about 522.6751733642.

The spelling of 142789284 in words is "one hundred forty-two million, seven hundred eighty-nine thousand, two hundred eighty-four".