28046180 has 12 divisors (see below), whose sum is σ = 58897020. Its totient is φ = 11218464.

The previous prime is 28046171. The next prime is 28046189. The reversal of 28046180 is 8164082.

It is an interprime number because it is at equal distance from previous prime (28046171) and next prime (28046189).

It can be written as a sum of positive squares in 2 ways, for example, as 16581184 + 11464996 = 4072^2 + 3386^2 .

It is not an unprimeable number, because it can be changed into a prime (28046189) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 701135 + ... + 701174.

It is an arithmetic number, because the mean of its divisors is an integer number (4908085).

Almost surely, 2^28046180 is an apocalyptic number.

28046180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28046180 is an abundant number, since it is smaller than the sum of its proper divisors (30850840).

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

28046180 is a wasteful number, since it uses less digits than its factorization.

28046180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1402318 (or 1402316 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 28046180 is about 5295.8644242465. The cubic root of 28046180 is about 303.8257455880.

The spelling of 28046180 in words is "twenty-eight million, forty-six thousand, one hundred eighty".