28395552 has 24 divisors (see below), whose sum is σ = 74538576. Its totient is φ = 9465152.

The previous prime is 28395541. The next prime is 28395571. The reversal of 28395552 is 25559382.

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

It is a self number, because there is not a number n which added to its sum of digits gives 28395552.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147798 + ... + 147989.

It is an arithmetic number, because the mean of its divisors is an integer number (3105774).

Almost surely, 2^28395552 is an apocalyptic number.

It is an amenable number.

28395552 is an abundant number, since it is smaller than the sum of its proper divisors (46143024).

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

28395552 is a wasteful number, since it uses less digits than its factorization.

28395552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295800 (or 295792 counting only the distinct ones).

The product of its digits is 108000, while the sum is 39.

The square root of 28395552 is about 5328.7476952845. The cubic root of 28395552 is about 305.0821314243.

The spelling of 28395552 in words is "twenty-eight million, three hundred ninety-five thousand, five hundred fifty-two".