28555324 has 24 divisors (see below), whose sum is σ = 57294720. Its totient is φ = 12198576.

The previous prime is 28555301. The next prime is 28555327. The reversal of 28555324 is 42355582.

It is a self number, because there is not a number n which added to its sum of digits gives 28555324.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28555327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8247 + ... + 11185.

It is an arithmetic number, because the mean of its divisors is an integer number (2387280).

Almost surely, 2^28555324 is an apocalyptic number.

It is an amenable number.

28555324 is an abundant number, since it is smaller than the sum of its proper divisors (28739396).

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

28555324 is a wasteful number, since it uses less digits than its factorization.

28555324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3297 (or 3295 counting only the distinct ones).

The product of its digits is 48000, while the sum is 34.

The square root of 28555324 is about 5343.7181811918. The cubic root of 28555324 is about 305.6532589715.

The spelling of 28555324 in words is "twenty-eight million, five hundred fifty-five thousand, three hundred twenty-four".