28662242 has 8 divisors (see below), whose sum is σ = 49135296. Its totient is φ = 12283812.

The previous prime is 28662199. The next prime is 28662247. The reversal of 28662242 is 24226682.

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

It is a junction number, because it is equal to n+sod(n) for n = 28662199 and 28662208.

It is not an unprimeable number, because it can be changed into a prime (28662247) 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, 1023638 + ... + 1023665.

It is an arithmetic number, because the mean of its divisors is an integer number (6141912).

Almost surely, 2^28662242 is an apocalyptic number.

28662242 is a deficient number, since it is larger than the sum of its proper divisors (20473054).

28662242 is a wasteful number, since it uses less digits than its factorization.

28662242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2047312.

The product of its digits is 18432, while the sum is 32.

The square root of 28662242 is about 5353.7129172192. The cubic root of 28662242 is about 306.0342636103.

The spelling of 28662242 in words is "twenty-eight million, six hundred sixty-two thousand, two hundred forty-two".