28176012 has 120 divisors (see below), whose sum is σ = 81312000. Its totient is φ = 8468064.

The previous prime is 28176011. The next prime is 28176013. The reversal of 28176012 is 21067182.

It is an interprime number because it is at equal distance from previous prime (28176011) and next prime (28176013).

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

It is not an unprimeable number, because it can be changed into a prime (28176011) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 141489 + ... + 141687.

It is an arithmetic number, because the mean of its divisors is an integer number (677600).

Almost surely, 2^28176012 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 28176012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40656000).

28176012 is an abundant number, since it is smaller than the sum of its proper divisors (53135988).

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

28176012 is a wasteful number, since it uses less digits than its factorization.

28176012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257 (or 246 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 28176012 is about 5308.1081375571. The cubic root of 28176012 is about 304.2938496422.

The spelling of 28176012 in words is "twenty-eight million, one hundred seventy-six thousand, twelve".