28503194 has 8 divisors (see below), whose sum is σ = 42906720. Its totient is φ = 14200956.

The previous prime is 28503161. The next prime is 28503199. The reversal of 28503194 is 49130582.

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

It is a self number, because there is not a number n which added to its sum of digits gives 28503194.

It is not an unprimeable number, because it can be changed into a prime (28503199) 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, 24614 + ... + 25745.

It is an arithmetic number, because the mean of its divisors is an integer number (5363340).

Almost surely, 2^28503194 is an apocalyptic number.

28503194 is a deficient number, since it is larger than the sum of its proper divisors (14403526).

28503194 is a wasteful number, since it uses less digits than its factorization.

28503194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50644.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 28503194 is about 5338.8382631430. The cubic root of 28503194 is about 305.4671476143.

The spelling of 28503194 in words is "twenty-eight million, five hundred three thousand, one hundred ninety-four".