28119914 has 16 divisors (see below), whose sum is σ = 43670016. Its totient is φ = 13566000.

The previous prime is 28119913. The next prime is 28119947. The reversal of 28119914 is 41991182.

It is not an unprimeable number, because it can be changed into a prime (28119913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39764 + ... + 40464.

It is an arithmetic number, because the mean of its divisors is an integer number (2729376).

Almost surely, 2^28119914 is an apocalyptic number.

28119914 is a deficient number, since it is larger than the sum of its proper divisors (15550102).

28119914 is a wasteful number, since it uses less digits than its factorization.

28119914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1381.

The product of its digits is 5184, while the sum is 35.

The square root of 28119914 is about 5302.8213245404. The cubic root of 28119914 is about 304.0917673673.

The spelling of 28119914 in words is "twenty-eight million, one hundred nineteen thousand, nine hundred fourteen".