28578060 has 144 divisors (see below), whose sum is σ = 101914176. Its totient is φ = 6345216.

The previous prime is 28578047. The next prime is 28578083. The reversal of 28578060 is 6087582.

28578060 is a `hidden beast` number, since 28 + 578 + 0 + 60 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 46314 + ... + 46926.

Almost surely, 2^28578060 is an apocalyptic number.

28578060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28578060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50957088).

28578060 is an abundant number, since it is smaller than the sum of its proper divisors (73336116).

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

28578060 is a wasteful number, since it uses less digits than its factorization.

28578060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672 (or 667 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 28578060 is about 5345.8451156015. The cubic root of 28578060 is about 305.7343587218.

The spelling of 28578060 in words is "twenty-eight million, five hundred seventy-eight thousand, sixty".