28820948 has 48 divisors (see below), whose sum is σ = 59082240. Its totient is φ = 12182400.

The previous prime is 28820941. The next prime is 28820963. The reversal of 28820948 is 84902882.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28820941) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30158 + ... + 31098.

It is an arithmetic number, because the mean of its divisors is an integer number (1230880).

Almost surely, 2^28820948 is an apocalyptic number.

It is an amenable number.

28820948 is an abundant number, since it is smaller than the sum of its proper divisors (30261292).

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

28820948 is a wasteful number, since it uses less digits than its factorization.

28820948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1008 (or 1006 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 41.

The square root of 28820948 is about 5368.5145058945. The cubic root of 28820948 is about 306.5980727701.

The spelling of 28820948 in words is "twenty-eight million, eight hundred twenty thousand, nine hundred forty-eight".