28994112 has 280 divisors, whose sum is σ = 106216704. Its totient is φ = 7630848.

The previous prime is 28994107. The next prime is 28994117. The reversal of 28994112 is 21149982.

It is an interprime number because it is at equal distance from previous prime (28994107) and next prime (28994117).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a nialpdrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28994117) 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 39 ways as a sum of consecutive naturals, for example, 616873 + ... + 616919.

Almost surely, 2^28994112 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 28994112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53108352).

28994112 is an abundant number, since it is smaller than the sum of its proper divisors (77222592).

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

28994112 is a wasteful number, since it uses less digits than its factorization.

28994112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95 (or 76 counting only the distinct ones).

The product of its digits is 10368, while the sum is 36.

The square root of 28994112 is about 5384.6180923070. The cubic root of 28994112 is about 307.2108882859.

The spelling of 28994112 in words is "twenty-eight million, nine hundred ninety-four thousand, one hundred twelve".