28084464 has 60 divisors (see below), whose sum is σ = 79416792. Its totient is φ = 9264000.

The previous prime is 28084447. The next prime is 28084471. The reversal of 28084464 is 46448082.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 11 ways as a sum of consecutive naturals, for example, 13579 + ... + 15509.

Almost surely, 2^28084464 is an apocalyptic number.

28084464 is a gapful number since it is divisible by the number (24) 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 28084464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39708396).

28084464 is an abundant number, since it is smaller than the sum of its proper divisors (51332328).

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

28084464 is a wasteful number, since it uses less digits than its factorization.

28084464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2046 (or 2037 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 36.

The square root of 28084464 is about 5299.4777101145. The cubic root of 28084464 is about 303.9639269293.

The spelling of 28084464 in words is "twenty-eight million, eighty-four thousand, four hundred sixty-four".