28067942 has 16 divisors (see below), whose sum is σ = 48211200. Its totient is φ = 12005448.

The previous prime is 28067939. The next prime is 28067951. The reversal of 28067942 is 24976082.

It is a junction number, because it is equal to n+sod(n) for n = 28067896 and 28067905.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6713 + ... + 10059.

It is an arithmetic number, because the mean of its divisors is an integer number (3013200).

Almost surely, 2^28067942 is an apocalyptic number.

28067942 is a deficient number, since it is larger than the sum of its proper divisors (20143258).

28067942 is a wasteful number, since it uses less digits than its factorization.

28067942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3955.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 28067942 is about 5297.9186479220. The cubic root of 28067942 is about 303.9043082358.

The spelling of 28067942 in words is "twenty-eight million, sixty-seven thousand, nine hundred forty-two".