28252368 has 80 divisors (see below), whose sum is σ = 85887360. Its totient is φ = 8861184.

The previous prime is 28252363. The next prime is 28252369. The reversal of 28252368 is 86325282.

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 (28252363) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5421 + ... + 9267.

It is an arithmetic number, because the mean of its divisors is an integer number (1073592).

Almost surely, 2^28252368 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 28252368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42943680).

28252368 is an abundant number, since it is smaller than the sum of its proper divisors (57634992).

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

28252368 is a wasteful number, since it uses less digits than its factorization.

28252368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3881 (or 3869 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 28252368 is about 5315.2956644010. The cubic root of 28252368 is about 304.5684769192.

It can be divided in two parts, 282 and 52368, that added together give a triangular number (52650 = T₃₂₄).

The spelling of 28252368 in words is "twenty-eight million, two hundred fifty-two thousand, three hundred sixty-eight".