28514518 has 4 divisors (see below), whose sum is σ = 42771780. Its totient is φ = 14257258.

The previous prime is 28514489. The next prime is 28514527. The reversal of 28514518 is 81541582.

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7128628 + ... + 7128631.

It is an arithmetic number, because the mean of its divisors is an integer number (10692945).

Almost surely, 2^28514518 is an apocalyptic number.

28514518 is a deficient number, since it is larger than the sum of its proper divisors (14257262).

28514518 is a wasteful number, since it uses less digits than its factorization.

28514518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14257261.

The product of its digits is 12800, while the sum is 34.

The square root of 28514518 is about 5339.8986881775. The cubic root of 28514518 is about 305.5075951514.

The spelling of 28514518 in words is "twenty-eight million, five hundred fourteen thousand, five hundred eighteen".