28454112 has 48 divisors (see below), whose sum is σ = 82993680. Its totient is φ = 9484416.

The previous prime is 28454093. The next prime is 28454119. The reversal of 28454112 is 21145482.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28454119) 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 7 ways as a sum of consecutive naturals, for example, 15603 + ... + 17330.

It is an arithmetic number, because the mean of its divisors is an integer number (1729035).

Almost surely, 2^28454112 is an apocalyptic number.

It is an amenable number.

28454112 is an abundant number, since it is smaller than the sum of its proper divisors (54539568).

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

28454112 is a wasteful number, since it uses less digits than its factorization.

28454112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32952 (or 32938 counting only the distinct ones).

The product of its digits is 2560, while the sum is 27.

The square root of 28454112 is about 5334.2395896697. The cubic root of 28454112 is about 305.2917105195.

Adding to 28454112 its reverse (21145482), we get a palindrome (49599594).

The spelling of 28454112 in words is "twenty-eight million, four hundred fifty-four thousand, one hundred twelve".