28016472 has 32 divisors (see below), whose sum is σ = 76409280. Its totient is φ = 8489760.

The previous prime is 28016441. The next prime is 28016477. The reversal of 28016472 is 27461082.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28016477) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52798 + ... + 53325.

It is an arithmetic number, because the mean of its divisors is an integer number (2387790).

Almost surely, 2^28016472 is an apocalyptic number.

28016472 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

28016472 is an abundant number, since it is smaller than the sum of its proper divisors (48392808).

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

28016472 is a wasteful number, since it uses less digits than its factorization.

28016472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106143 (or 106139 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 28016472 is about 5293.0588509859. The cubic root of 28016472 is about 303.7184315784.

The spelling of 28016472 in words is "twenty-eight million, sixteen thousand, four hundred seventy-two".