142036728 has 32 divisors (see below), whose sum is σ = 356697600. Its totient is φ = 47131488.

The previous prime is 142036711. The next prime is 142036729. The reversal of 142036728 is 827630241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142036729) 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, 7918 + ... + 18621.

It is an arithmetic number, because the mean of its divisors is an integer number (11146800).

Almost surely, 2^142036728 is an apocalyptic number.

It is an amenable number.

142036728 is an abundant number, since it is smaller than the sum of its proper divisors (214660872).

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

142036728 is a wasteful number, since it uses less digits than its factorization.

142036728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26771 (or 26767 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 142036728 is about 11917.9162608234. The cubic root of 142036728 is about 521.7553205097.

Adding to 142036728 its reverse (827630241), we get a palindrome (969666969).

The spelling of 142036728 in words is "one hundred forty-two million, thirty-six thousand, seven hundred twenty-eight".