142728280 has 16 divisors (see below), whose sum is σ = 321138720. Its totient is φ = 57091296.

The previous prime is 142728253. The next prime is 142728283. The reversal of 142728280 is 82827241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142728283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1784064 + ... + 1784143.

It is an arithmetic number, because the mean of its divisors is an integer number (20071170).

Almost surely, 2^142728280 is an apocalyptic number.

142728280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142728280 is an abundant number, since it is smaller than the sum of its proper divisors (178410440).

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

142728280 is a wasteful number, since it uses less digits than its factorization.

142728280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3568218 (or 3568214 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 34.

The square root of 142728280 is about 11946.8941570602. The cubic root of 142728280 is about 522.6007284263.

The spelling of 142728280 in words is "one hundred forty-two million, seven hundred twenty-eight thousand, two hundred eighty".