28037016 has 120 divisors (see below), whose sum is σ = 91454220. Its totient is φ = 8001504.

The previous prime is 28037011. The next prime is 28037017. The reversal of 28037016 is 61073082.

28037016 is a `hidden beast` number, since 280 + 370 + 16 = 666.

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 (28037011) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 31311 + ... + 32193.

Almost surely, 2^28037016 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 28037016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45727110).

28037016 is an abundant number, since it is smaller than the sum of its proper divisors (63417204).

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

28037016 is a wasteful number, since it uses less digits than its factorization.

28037016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 915 (or 895 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 28037016 is about 5294.9991501416. Note that the first 3 decimals coincide. The cubic root of 28037016 is about 303.7926506182.

The spelling of 28037016 in words is "twenty-eight million, thirty-seven thousand, sixteen".