28858944 has 112 divisors (see below), whose sum is σ = 81198720. Its totient is φ = 9031680.

The previous prime is 28858919. The next prime is 28858961. The reversal of 28858944 is 44985882.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 28858893 and 28858902.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 395292 + ... + 395364.

Almost surely, 2^28858944 is an apocalyptic number.

28858944 is a gapful number since it is divisible by the number (24) 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 28858944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40599360).

28858944 is an abundant number, since it is smaller than the sum of its proper divisors (52339776).

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

28858944 is a wasteful number, since it uses less digits than its factorization.

28858944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188 (or 178 counting only the distinct ones).

The product of its digits is 737280, while the sum is 48.

The square root of 28858944 is about 5372.0521218618. The cubic root of 28858944 is about 306.7327477845.

The spelling of 28858944 in words is "twenty-eight million, eight hundred fifty-eight thousand, nine hundred forty-four".