28828152 has 24 divisors (see below), whose sum is σ = 78076440. Its totient is φ = 9609360.

The previous prime is 28828147. The next prime is 28828153. The reversal of 28828152 is 25182882.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (24).

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 (28828153) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 200124 + ... + 200267.

It is an arithmetic number, because the mean of its divisors is an integer number (3253185).

Almost surely, 2^28828152 is an apocalyptic number.

It is an amenable number.

28828152 is an abundant number, since it is smaller than the sum of its proper divisors (49248288).

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

28828152 is a wasteful number, since it uses less digits than its factorization.

28828152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400403 (or 400396 counting only the distinct ones).

The product of its digits is 20480, while the sum is 36.

The square root of 28828152 is about 5369.1854130771. The cubic root of 28828152 is about 306.6236160950.

The spelling of 28828152 in words is "twenty-eight million, eight hundred twenty-eight thousand, one hundred fifty-two".