28904466 has 8 divisors (see below), whose sum is σ = 57808944. Its totient is φ = 9634820.

The previous prime is 28904443. The next prime is 28904521. The reversal of 28904466 is 66440982.

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

28904466 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2408700 + ... + 2408711.

It is an arithmetic number, because the mean of its divisors is an integer number (7226118).

Almost surely, 2^28904466 is an apocalyptic number.

28904466 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.

28904466 is a wasteful number, since it uses less digits than its factorization.

28904466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4817416.

The product of its (nonzero) digits is 82944, while the sum is 39.

The square root of 28904466 is about 5376.2873807117. The cubic root of 28904466 is about 306.8939427887.

The spelling of 28904466 in words is "twenty-eight million, nine hundred four thousand, four hundred sixty-six".