28046442 has 8 divisors (see below), whose sum is σ = 56092896. Its totient is φ = 9348812.

The previous prime is 28046441. The next prime is 28046461. The reversal of 28046442 is 24464082.

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

28046442 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (28046441) 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, 2337198 + ... + 2337209.

It is an arithmetic number, because the mean of its divisors is an integer number (7011612).

Almost surely, 2^28046442 is an apocalyptic number.

28046442 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.

28046442 is a wasteful number, since it uses less digits than its factorization.

28046442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4674412.

The product of its (nonzero) digits is 12288, while the sum is 30.

The square root of 28046442 is about 5295.8891604715. The cubic root of 28046442 is about 303.8266916716.

The spelling of 28046442 in words is "twenty-eight million, forty-six thousand, four hundred forty-two".