28385334 has 24 divisors (see below), whose sum is σ = 61632792. Its totient is φ = 9441600.

The previous prime is 28385311. The next prime is 28385347. The reversal of 28385334 is 43358382.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8734 + ... + 11534.

It is an arithmetic number, because the mean of its divisors is an integer number (2568033).

Almost surely, 2^28385334 is an apocalyptic number.

28385334 is an abundant number, since it is smaller than the sum of its proper divisors (33247458).

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

28385334 is a wasteful number, since it uses less digits than its factorization.

28385334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3372 (or 3369 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 28385334 is about 5327.7888471673. The cubic root of 28385334 is about 305.0455329316.

The spelling of 28385334 in words is "twenty-eight million, three hundred eighty-five thousand, three hundred thirty-four".