28361642 has 16 divisors (see below), whose sum is σ = 44906400. Its totient is φ = 13397040.

The previous prime is 28361629. The next prime is 28361651. The reversal of 28361642 is 24616382.

It is a junction number, because it is equal to n+sod(n) for n = 28361599 and 28361608.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16709 + ... + 18327.

It is an arithmetic number, because the mean of its divisors is an integer number (2806650).

Almost surely, 2^28361642 is an apocalyptic number.

28361642 is a deficient number, since it is larger than the sum of its proper divisors (16544758).

28361642 is a wasteful number, since it uses less digits than its factorization.

28361642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2101.

The product of its digits is 13824, while the sum is 32.

The square root of 28361642 is about 5325.5649465573. The cubic root of 28361642 is about 304.9606399087.

The spelling of 28361642 in words is "twenty-eight million, three hundred sixty-one thousand, six hundred forty-two".