28552368 has 40 divisors (see below), whose sum is σ = 79435888. Its totient is φ = 8785152.

The previous prime is 28552351. The next prime is 28552369. The reversal of 28552368 is 86325582.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28552369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22255 + ... + 23502.

Almost surely, 2^28552368 is an apocalyptic number.

It is an amenable number.

28552368 is an abundant number, since it is smaller than the sum of its proper divisors (50883520).

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

28552368 is a wasteful number, since it uses less digits than its factorization.

28552368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45781 (or 45775 counting only the distinct ones).

The product of its digits is 115200, while the sum is 39.

The square root of 28552368 is about 5343.4415875913. The cubic root of 28552368 is about 305.6427117006.

It can be divided in two parts, 28552 and 368, that added together give a triangular number (28920 = T₂₄₀).

The spelling of 28552368 in words is "twenty-eight million, five hundred fifty-two thousand, three hundred sixty-eight".