28885274 has 8 divisors (see below), whose sum is σ = 47266848. Its totient is φ = 13129660.

The previous prime is 28885253. The next prime is 28885303. The reversal of 28885274 is 47258882.

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

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 3 ways as a sum of consecutive naturals, for example, 656462 + ... + 656505.

It is an arithmetic number, because the mean of its divisors is an integer number (5908356).

Almost surely, 2^28885274 is an apocalyptic number.

28885274 is a deficient number, since it is larger than the sum of its proper divisors (18381574).

28885274 is a wasteful number, since it uses less digits than its factorization.

28885274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1312980.

The product of its digits is 286720, while the sum is 44.

The square root of 28885274 is about 5374.5022095074. The cubic root of 28885274 is about 306.8260038915.

The spelling of 28885274 in words is "twenty-eight million, eight hundred eighty-five thousand, two hundred seventy-four".