28406112 has 96 divisors (see below), whose sum is σ = 87381504. Its totient is φ = 7910400.

The previous prime is 28406111. The next prime is 28406113. The reversal of 28406112 is 21160482.

It is an interprime number because it is at equal distance from previous prime (28406111) and next prime (28406113).

It is a tau number, because it is divible by the number of its divisors (96).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28406111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27037 + ... + 28067.

It is an arithmetic number, because the mean of its divisors is an integer number (910224).

Almost surely, 2^28406112 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 28406112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43690752).

28406112 is an abundant number, since it is smaller than the sum of its proper divisors (58975392).

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

28406112 is a wasteful number, since it uses less digits than its factorization.

28406112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1092 (or 1084 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 28406112 is about 5329.7384551214. The cubic root of 28406112 is about 305.1199456569.

Adding to 28406112 its reverse (21160482), we get a palindrome (49566594).

The spelling of 28406112 in words is "twenty-eight million, four hundred six thousand, one hundred twelve".