28041948 has 72 divisors (see below), whose sum is σ = 81419520. Its totient is φ = 8048160.

The previous prime is 28041941. The next prime is 28041953. The reversal of 28041948 is 84914082.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28041941) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5661 + ... + 9387.

Almost surely, 2^28041948 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28041948, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40709760).

28041948 is an abundant number, since it is smaller than the sum of its proper divisors (53377572).

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

28041948 is a wasteful number, since it uses less digits than its factorization.

28041948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3767 (or 3762 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 28041948 is about 5295.4648521164. The cubic root of 28041948 is about 303.8104629929.

The spelling of 28041948 in words is "twenty-eight million, forty-one thousand, nine hundred forty-eight".