28041842 has 8 divisors (see below), whose sum is σ = 42479532. Its totient is φ = 13882000.

The previous prime is 28041841. The next prime is 28041847. The reversal of 28041842 is 24814082.

It can be written as a sum of positive squares in 2 ways, for example, as 27888961 + 152881 = 5281^2 + 391^2 .

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

It is not an unprimeable number, because it can be changed into a prime (28041841) 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, 69209 + ... + 69612.

Almost surely, 2^28041842 is an apocalyptic number.

28041842 is a deficient number, since it is larger than the sum of its proper divisors (14437690).

28041842 is a wasteful number, since it uses less digits than its factorization.

28041842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138924.

The product of its (nonzero) digits is 4096, while the sum is 29.

The square root of 28041842 is about 5295.4548435427. The cubic root of 28041842 is about 303.8100801861.

The spelling of 28041842 in words is "twenty-eight million, forty-one thousand, eight hundred forty-two".