28920192 has 192 divisors, whose sum is σ = 94186800. Its totient is φ = 7827456.

The previous prime is 28920173. The next prime is 28920233. The reversal of 28920192 is 29102982.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (192).

It is a congruent number.

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, 545638 + ... + 545690.

Almost surely, 2^28920192 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 28920192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47093400).

28920192 is an abundant number, since it is smaller than the sum of its proper divisors (65266608).

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

28920192 is a wasteful number, since it uses less digits than its factorization.

28920192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113 (or 94 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 28920192 is about 5377.7497152620. The cubic root of 28920192 is about 306.9495897735.

The spelling of 28920192 in words is "twenty-eight million, nine hundred twenty thousand, one hundred ninety-two".