28948434 has 8 divisors (see below), whose sum is σ = 57896880. Its totient is φ = 9649476.

The previous prime is 28948429. The next prime is 28948463. The reversal of 28948434 is 43484982.

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

28948434 is an admirable number.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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, 2412364 + ... + 2412375.

It is an arithmetic number, because the mean of its divisors is an integer number (7237110).

Almost surely, 2^28948434 is an apocalyptic number.

28948434 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.

28948434 is a wasteful number, since it uses less digits than its factorization.

28948434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4824744.

The product of its digits is 221184, while the sum is 42.

The square root of 28948434 is about 5380.3748940013. The cubic root of 28948434 is about 307.0494744260.

The spelling of 28948434 in words is "twenty-eight million, nine hundred forty-eight thousand, four hundred thirty-four".