28211352 has 64 divisors (see below), whose sum is σ = 79968000. Its totient is φ = 8221824.

The previous prime is 28211303. The next prime is 28211377. The reversal of 28211352 is 25311282.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 3549 + ... + 8307.

It is an arithmetic number, because the mean of its divisors is an integer number (1249500).

Almost surely, 2^28211352 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 28211352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39984000).

28211352 is an abundant number, since it is smaller than the sum of its proper divisors (51756648).

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

28211352 is a wasteful number, since it uses less digits than its factorization.

28211352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4800 (or 4796 counting only the distinct ones).

The product of its digits is 960, while the sum is 24.

The square root of 28211352 is about 5311.4359640308. The cubic root of 28211352 is about 304.4210175299.

The spelling of 28211352 in words is "twenty-eight million, two hundred eleven thousand, three hundred fifty-two".