142087928 has 64 divisors (see below), whose sum is σ = 296352000. Its totient is φ = 63562752.

The previous prime is 142087927. The next prime is 142087961. The reversal of 142087928 is 829780241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142087927) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 338903 + ... + 339321.

It is an arithmetic number, because the mean of its divisors is an integer number (4630500).

Almost surely, 2^142087928 is an apocalyptic number.

It is an amenable number.

142087928 is an abundant number, since it is smaller than the sum of its proper divisors (154264072).

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

142087928 is a wasteful number, since it uses less digits than its factorization.

142087928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564 (or 560 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 142087928 is about 11920.0640937874. The cubic root of 142087928 is about 521.8180053837.

The spelling of 142087928 in words is "one hundred forty-two million, eighty-seven thousand, nine hundred twenty-eight".