28518142 has 8 divisors (see below), whose sum is σ = 42940656. Its totient is φ = 14204592.

The previous prime is 28518121. The next prime is 28518167. The reversal of 28518142 is 24181582.

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

It is a congruent 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, 26583 + ... + 27634.

It is an arithmetic number, because the mean of its divisors is an integer number (5367582).

Almost surely, 2^28518142 is an apocalyptic number.

28518142 is a deficient number, since it is larger than the sum of its proper divisors (14422514).

28518142 is a wasteful number, since it uses less digits than its factorization.

28518142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54482.

The product of its digits is 5120, while the sum is 31.

The square root of 28518142 is about 5340.2380096771. The cubic root of 28518142 is about 305.5205372443.

The spelling of 28518142 in words is "twenty-eight million, five hundred eighteen thousand, one hundred forty-two".