142228528 has 160 divisors (see below), whose sum is σ = 346852800. Its totient is φ = 55738368.

The previous prime is 142228517. The next prime is 142228529. The reversal of 142228528 is 825822241.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a junction number, because it is equal to n+sod(n) for n = 142228493 and 142228502.

It is not an unprimeable number, because it can be changed into a prime (142228529) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1948300 + ... + 1948372.

It is an arithmetic number, because the mean of its divisors is an integer number (2167830).

Almost surely, 2^142228528 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 142228528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173426400).

142228528 is an abundant number, since it is smaller than the sum of its proper divisors (204624272).

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

142228528 is a wasteful number, since it uses less digits than its factorization.

142228528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159 (or 153 counting only the distinct ones).

The product of its digits is 20480, while the sum is 34.

The square root of 142228528 is about 11925.9602548390. The cubic root of 142228528 is about 521.9900665060.

The spelling of 142228528 in words is "one hundred forty-two million, two hundred twenty-eight thousand, five hundred twenty-eight".