142256928 has 96 divisors (see below), whose sum is σ = 411505920. Its totient is φ = 42671360.

The previous prime is 142256927. The next prime is 142256957. The reversal of 142256928 is 829652241.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (142256927) 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, 112363 + ... + 113621.

It is an arithmetic number, because the mean of its divisors is an integer number (4286520).

Almost surely, 2^142256928 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142256928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (205752960).

142256928 is an abundant number, since it is smaller than the sum of its proper divisors (269248992).

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

142256928 is a wasteful number, since it uses less digits than its factorization.

142256928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1390 (or 1382 counting only the distinct ones).

The product of its digits is 69120, while the sum is 39.

The square root of 142256928 is about 11927.1508752090. The cubic root of 142256928 is about 522.0248076171.

The spelling of 142256928 in words is "one hundred forty-two million, two hundred fifty-six thousand, nine hundred twenty-eight".