28883274 has 32 divisors (see below), whose sum is σ = 66439680. Its totient is φ = 8199792.

The previous prime is 28883243. The next prime is 28883279. The reversal of 28883274 is 47238882.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (28883279) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 4737 + ... + 8955.

It is an arithmetic number, because the mean of its divisors is an integer number (2076240).

Almost surely, 2^28883274 is an apocalyptic number.

28883274 is an abundant number, since it is smaller than the sum of its proper divisors (37556406).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28883274 is a wasteful number, since it uses less digits than its factorization.

28883274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4394.

The product of its digits is 172032, while the sum is 42.

The square root of 28883274 is about 5374.3161425432. The cubic root of 28883274 is about 306.8189222419.

The spelling of 28883274 in words is "twenty-eight million, eight hundred eighty-three thousand, two hundred seventy-four".