28375142 has 16 divisors (see below), whose sum is σ = 45518112. Its totient is φ = 13219200.

The previous prime is 28375133. The next prime is 28375153. The reversal of 28375142 is 24157382.

It is a junction number, because it is equal to n+sod(n) for n = 28375099 and 28375108.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 698 + ... + 7565.

It is an arithmetic number, because the mean of its divisors is an integer number (2844882).

Almost surely, 2^28375142 is an apocalyptic number.

28375142 is a deficient number, since it is larger than the sum of its proper divisors (17142970).

28375142 is a wasteful number, since it uses less digits than its factorization.

28375142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8383.

The product of its digits is 13440, while the sum is 32.

The square root of 28375142 is about 5326.8322669294. The cubic root of 28375142 is about 305.0090188142.

The spelling of 28375142 in words is "twenty-eight million, three hundred seventy-five thousand, one hundred forty-two".