28048080 has 40 divisors (see below), whose sum is σ = 86949792. Its totient is φ = 7479424.

The previous prime is 28048073. The next prime is 28048093. The reversal of 28048080 is 8084082.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58194 + ... + 58673.

Almost surely, 2^28048080 is an apocalyptic number.

28048080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28048080 is an abundant number, since it is smaller than the sum of its proper divisors (58901712).

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

28048080 is a wasteful number, since it uses less digits than its factorization.

28048080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116883 (or 116877 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 30.

The square root of 28048080 is about 5296.0438064654. The cubic root of 28048080 is about 303.8326063664.

The spelling of 28048080 in words is "twenty-eight million, forty-eight thousand, eighty".