28942 has 8 divisors (see below), whose sum is σ = 45000. Its totient is φ = 13944.

The previous prime is 28933. The next prime is 28949. The reversal of 28942 is 24982.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 192 + ... + 307.

It is an arithmetic number, because the mean of its divisors is an integer number (5625).

2²⁸⁹⁴² is an apocalyptic number.

28942 is a deficient number, since it is larger than the sum of its proper divisors (16058).

28942 is a wasteful number, since it uses less digits than its factorization.

28942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530.

The product of its digits is 1152, while the sum is 25.

The square root of 28942 is about 170.1234845634. The cubic root of 28942 is about 30.7026724748.

The spelling of 28942 in words is "twenty-eight thousand, nine hundred forty-two".