142828 has 12 divisors (see below), whose sum is σ = 285712. Its totient is φ = 61200.

The previous prime is 142811. The next prime is 142837. The reversal of 142828 is 828241.

142828 is an admirable number.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2523 + ... + 2578.

2¹⁴²⁸²⁸ is an apocalyptic number.

It is an amenable number.

142828 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

142828 is a wasteful number, since it uses less digits than its factorization.

142828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5112 (or 5110 counting only the distinct ones).

The product of its digits is 1024, while the sum is 25.

The square root of 142828 is about 377.9259186666. The cubic root of 142828 is about 52.2722408616.

The spelling of 142828 in words is "one hundred forty-two thousand, eight hundred twenty-eight".