28075270 has 8 divisors (see below), whose sum is σ = 50535504. Its totient is φ = 11230104.

The previous prime is 28075253. The next prime is 28075291. The reversal of 28075270 is 7257082.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1403754 + ... + 1403773.

It is an arithmetic number, because the mean of its divisors is an integer number (6316938).

Almost surely, 2^28075270 is an apocalyptic number.

28075270 is a deficient number, since it is larger than the sum of its proper divisors (22460234).

28075270 is a wasteful number, since it uses less digits than its factorization.

28075270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2807534.

The product of its (nonzero) digits is 7840, while the sum is 31.

The square root of 28075270 is about 5298.6101951361. The cubic root of 28075270 is about 303.9307537918.

The spelling of 28075270 in words is "twenty-eight million, seventy-five thousand, two hundred seventy".