28006270 has 8 divisors (see below), whose sum is σ = 50411304. Its totient is φ = 11202504.

The previous prime is 28006261. The next prime is 28006271. The reversal of 28006270 is 7260082.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28006271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1400304 + ... + 1400323.

It is an arithmetic number, because the mean of its divisors is an integer number (6301413).

Almost surely, 2^28006270 is an apocalyptic number.

28006270 is a deficient number, since it is larger than the sum of its proper divisors (22405034).

28006270 is a wasteful number, since it uses less digits than its factorization.

28006270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2800634.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 28006270 is about 5292.0950482772. The cubic root of 28006270 is about 303.6815614636.

The spelling of 28006270 in words is "twenty-eight million, six thousand, two hundred seventy".