28395494 has 4 divisors (see below), whose sum is σ = 42593244. Its totient is φ = 14197746.

The previous prime is 28395487. The next prime is 28395529. The reversal of 28395494 is 49459382.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7098872 + ... + 7098875.

It is an arithmetic number, because the mean of its divisors is an integer number (10648311).

Almost surely, 2^28395494 is an apocalyptic number.

28395494 is a deficient number, since it is larger than the sum of its proper divisors (14197750).

28395494 is a wasteful number, since it uses less digits than its factorization.

28395494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14197749.

The product of its digits is 311040, while the sum is 44.

The square root of 28395494 is about 5328.7422531025. The cubic root of 28395494 is about 305.0819237067.

The spelling of 28395494 in words is "twenty-eight million, three hundred ninety-five thousand, four hundred ninety-four".