28859442 has 16 divisors (see below), whose sum is σ = 60756960. Its totient is φ = 9113472.

The previous prime is 28859417. The next prime is 28859443. The reversal of 28859442 is 24495882.

It is a junction number, because it is equal to n+sod(n) for n = 28859394 and 28859403.

It is not an unprimeable number, because it can be changed into a prime (28859443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126463 + ... + 126690.

It is an arithmetic number, because the mean of its divisors is an integer number (3797310).

Almost surely, 2^28859442 is an apocalyptic number.

28859442 is an abundant number, since it is smaller than the sum of its proper divisors (31897518).

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

28859442 is a wasteful number, since it uses less digits than its factorization.

28859442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253177.

The product of its digits is 184320, while the sum is 42.

The square root of 28859442 is about 5372.0984726641. The cubic root of 28859442 is about 306.7345121367.

The spelling of 28859442 in words is "twenty-eight million, eight hundred fifty-nine thousand, four hundred forty-two".