28672842 has 16 divisors (see below), whose sum is σ = 62559072. Its totient is φ = 8688720.

The previous prime is 28672823. The next prime is 28672849. The reversal of 28672842 is 24827682.

It is a self number, because there is not a number n which added to its sum of digits gives 28672842.

It is not an unprimeable number, because it can be changed into a prime (28672849) 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, 217153 + ... + 217284.

It is an arithmetic number, because the mean of its divisors is an integer number (3909942).

Almost surely, 2^28672842 is an apocalyptic number.

28672842 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

28672842 is an abundant number, since it is smaller than the sum of its proper divisors (33886230).

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

28672842 is a wasteful number, since it uses less digits than its factorization.

28672842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434453.

The product of its digits is 86016, while the sum is 39.

The square root of 28672842 is about 5354.7027928728. The cubic root of 28672842 is about 306.0719852858.

The spelling of 28672842 in words is "twenty-eight million, six hundred seventy-two thousand, eight hundred forty-two".