28014080 has 80 divisors (see below), whose sum is σ = 69531264. Its totient is φ = 10813440.

The previous prime is 28014073. The next prime is 28014101. The reversal of 28014080 is 8041082.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

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, 79184 + ... + 79536.

Almost surely, 2^28014080 is an apocalyptic number.

28014080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28014080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34765632).

28014080 is an abundant number, since it is smaller than the sum of its proper divisors (41517184).

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

28014080 is an equidigital number, since it uses as much as digits as its factorization.

28014080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407 (or 391 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 23.

The square root of 28014080 is about 5292.8328898615. The cubic root of 28014080 is about 303.7097876735.

The spelling of 28014080 in words is "twenty-eight million, fourteen thousand, eighty".