28470030 has 16 divisors (see below), whose sum is σ = 68328144. Its totient is φ = 7592000.

The previous prime is 28470023. The next prime is 28470041. The reversal of 28470030 is 3007482.

It is a Curzon number.

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 in 7 ways as a sum of consecutive naturals, for example, 474471 + ... + 474530.

It is an arithmetic number, because the mean of its divisors is an integer number (4270509).

Almost surely, 2^28470030 is an apocalyptic number.

28470030 is an abundant number, since it is smaller than the sum of its proper divisors (39858114).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28470030 is a wasteful number, since it uses less digits than its factorization.

28470030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 949011.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 28470030 is about 5335.7314400183. The cubic root of 28470030 is about 305.3486293874.

The spelling of 28470030 in words is "twenty-eight million, four hundred seventy thousand, thirty".