28360948 has 48 divisors (see below), whose sum is σ = 62471808. Its totient is φ = 11035200.

The previous prime is 28360933. The next prime is 28360973. The reversal of 28360948 is 84906382.

It is a self number, because there is not a number n which added to its sum of digits gives 28360948.

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 15 ways as a sum of consecutive naturals, for example, 36888 + ... + 37648.

It is an arithmetic number, because the mean of its divisors is an integer number (1301496).

Almost surely, 2^28360948 is an apocalyptic number.

28360948 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28360948, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31235904).

28360948 is an abundant number, since it is smaller than the sum of its proper divisors (34110860).

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

28360948 is a wasteful number, since it uses less digits than its factorization.

28360948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 805 (or 781 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 28360948 is about 5325.4997887522. The cubic root of 28360948 is about 304.9581524598.

The spelling of 28360948 in words is "twenty-eight million, three hundred sixty thousand, nine hundred forty-eight".