28677180 has 48 divisors (see below), whose sum is σ = 91768320. Its totient is φ = 6554688.

The previous prime is 28677179. The next prime is 28677193. The reversal of 28677180 is 8177682.

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 15 ways as a sum of consecutive naturals, for example, 33720 + ... + 34559.

It is an arithmetic number, because the mean of its divisors is an integer number (1911840).

Almost surely, 2^28677180 is an apocalyptic number.

28677180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28677180 is an abundant number, since it is smaller than the sum of its proper divisors (63091140).

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

28677180 is a wasteful number, since it uses less digits than its factorization.

28677180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68298 (or 68296 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 39.

The square root of 28677180 is about 5355.1078420514. The cubic root of 28677180 is about 306.0874200227.

The spelling of 28677180 in words is "twenty-eight million, six hundred seventy-seven thousand, one hundred eighty".