28030274 has 8 divisors (see below), whose sum is σ = 42136848. Its totient is φ = 13984660.

The previous prime is 28030273. The next prime is 28030279. The reversal of 28030274 is 47203082.

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

It is not an unprimeable number, because it can be changed into a prime (28030271) 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 3 ways as a sum of consecutive naturals, for example, 14072 + ... + 15939.

It is an arithmetic number, because the mean of its divisors is an integer number (5267106).

Almost surely, 2^28030274 is an apocalyptic number.

28030274 is a deficient number, since it is larger than the sum of its proper divisors (14106574).

28030274 is a wasteful number, since it uses less digits than its factorization.

28030274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30480.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 28030274 is about 5294.3624734240. The cubic root of 28030274 is about 303.7682978810.

The spelling of 28030274 in words is "twenty-eight million, thirty thousand, two hundred seventy-four".