28076406 has 8 divisors (see below), whose sum is σ = 56152824. Its totient is φ = 9358800.

The previous prime is 28076393. The next prime is 28076407. The reversal of 28076406 is 60467082.

It is a sphenic number, since it is the product of 3 distinct primes.

28076406 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28076407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2339695 + ... + 2339706.

It is an arithmetic number, because the mean of its divisors is an integer number (7019103).

Almost surely, 2^28076406 is an apocalyptic number.

28076406 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

28076406 is a wasteful number, since it uses less digits than its factorization.

28076406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4679406.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 28076406 is about 5298.7173919733. The cubic root of 28076406 is about 303.9348530183.

It can be divided in two parts, 28076 and 406, that added together give a palindrome (28482).

The spelling of 28076406 in words is "twenty-eight million, seventy-six thousand, four hundred six".