28034406 has 24 divisors (see below), whose sum is σ = 62224344. Its totient is φ = 9116640.

The previous prime is 28034389. The next prime is 28034417. The reversal of 28034406 is 60443082.

It is a self number, because there is not a number n which added to its sum of digits gives 28034406.

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, 18256 + ... + 19731.

It is an arithmetic number, because the mean of its divisors is an integer number (2592681).

Almost surely, 2^28034406 is an apocalyptic number.

28034406 is an abundant number, since it is smaller than the sum of its proper divisors (34189938).

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

28034406 is a wasteful number, since it uses less digits than its factorization.

28034406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38036 (or 38033 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 28034406 is about 5294.7526854424. The cubic root of 28034406 is about 303.7832235163.

Adding to 28034406 its reverse (60443082), we get a palindrome (88477488).

The spelling of 28034406 in words is "twenty-eight million, thirty-four thousand, four hundred six".