28020382 has 8 divisors (see below), whose sum is σ = 45263736. Its totient is φ = 12932472.

The previous prime is 28020379. The next prime is 28020397. The reversal of 28020382 is 28302082.

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, 538828 + ... + 538879.

It is an arithmetic number, because the mean of its divisors is an integer number (5657967).

Almost surely, 2^28020382 is an apocalyptic number.

28020382 is a deficient number, since it is larger than the sum of its proper divisors (17243354).

28020382 is a wasteful number, since it uses less digits than its factorization.

28020382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1077722.

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 28020382 is about 5293.4281897462. The cubic root of 28020382 is about 303.7325599791.

The spelling of 28020382 in words is "twenty-eight million, twenty thousand, three hundred eighty-two".