28434246 has 8 divisors (see below), whose sum is σ = 56868504. Its totient is φ = 9478080.

The previous prime is 28434199. The next prime is 28434253. The reversal of 28434246 is 64243482.

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

28434246 is an admirable number.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent 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, 2369515 + ... + 2369526.

It is an arithmetic number, because the mean of its divisors is an integer number (7108563).

Almost surely, 2^28434246 is an apocalyptic number.

28434246 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.

28434246 is a wasteful number, since it uses less digits than its factorization.

28434246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4739046.

The product of its digits is 36864, while the sum is 33.

The square root of 28434246 is about 5332.3771434511. The cubic root of 28434246 is about 305.2206447847.

It can be divided in two parts, 28434 and 246, that added together give a triangular number (28680 = T₂₃₉).

The spelling of 28434246 in words is "twenty-eight million, four hundred thirty-four thousand, two hundred forty-six".