28258070 has 16 divisors (see below), whose sum is σ = 51172128. Its totient is φ = 11234880.

The previous prime is 28258057. The next prime is 28258129. The reversal of 28258070 is 7085282.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6791 + ... + 10130.

It is an arithmetic number, because the mean of its divisors is an integer number (3198258).

Almost surely, 2^28258070 is an apocalyptic number.

28258070 is a deficient number, since it is larger than the sum of its proper divisors (22914058).

28258070 is a wasteful number, since it uses less digits than its factorization.

28258070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17095.

The product of its (nonzero) digits is 8960, while the sum is 32.

The square root of 28258070 is about 5315.8320138996. The cubic root of 28258070 is about 304.5889652624.

The spelling of 28258070 in words is "twenty-eight million, two hundred fifty-eight thousand, seventy".