28042395 has 16 divisors (see below), whose sum is σ = 45034272. Its totient is φ = 14900480.

The previous prime is 28042369. The next prime is 28042397. The reversal of 28042395 is 59324082.

It is a happy number.

It is not a de Polignac number, because 28042395 - 2⁵ = 28042363 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28042397) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 889 + ... + 7541.

It is an arithmetic number, because the mean of its divisors is an integer number (2814642).

Almost surely, 2^28042395 is an apocalyptic number.

28042395 is a deficient number, since it is larger than the sum of its proper divisors (16991877).

28042395 is a wasteful number, since it uses less digits than its factorization.

28042395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6942.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 28042395 is about 5295.5070578746. The cubic root of 28042395 is about 303.8120772716.

The spelling of 28042395 in words is "twenty-eight million, forty-two thousand, three hundred ninety-five".