28554980 has 12 divisors (see below), whose sum is σ = 59965500. Its totient is φ = 11421984.

The previous prime is 28554979. The next prime is 28555049. The reversal of 28554980 is 8945582.

It can be written as a sum of positive squares in 2 ways, for example, as 19166884 + 9388096 = 4378^2 + 3064^2 .

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 713855 + ... + 713894.

It is an arithmetic number, because the mean of its divisors is an integer number (4997125).

Almost surely, 2^28554980 is an apocalyptic number.

28554980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28554980 is an abundant number, since it is smaller than the sum of its proper divisors (31410520).

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

28554980 is a wasteful number, since it uses less digits than its factorization.

28554980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1427758 (or 1427756 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 41.

The square root of 28554980 is about 5343.6859937687. The cubic root of 28554980 is about 305.6520315863.

The spelling of 28554980 in words is "twenty-eight million, five hundred fifty-four thousand, nine hundred eighty".