28572048 has 120 divisors (see below), whose sum is σ = 87816800. Its totient is φ = 8869824.

The previous prime is 28572001. The next prime is 28572073. The reversal of 28572048 is 84027582.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 484243 + ... + 484301.

Almost surely, 2^28572048 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 28572048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43908400).

28572048 is an abundant number, since it is smaller than the sum of its proper divisors (59244752).

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

28572048 is a wasteful number, since it uses less digits than its factorization.

28572048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154 (or 83 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 36.

The square root of 28572048 is about 5345.2827801717. The cubic root of 28572048 is about 305.7129179863.

The spelling of 28572048 in words is "twenty-eight million, five hundred seventy-two thousand, forty-eight".