28476560 has 80 divisors (see below), whose sum is σ = 76340352. Its totient is φ = 9676800.

The previous prime is 28476559. The next prime is 28476607. The reversal of 28476560 is 6567482.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118040 + ... + 118280.

Almost surely, 2^28476560 is an apocalyptic number.

28476560 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 28476560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38170176).

28476560 is an abundant number, since it is smaller than the sum of its proper divisors (47863792).

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

28476560 is a wasteful number, since it uses less digits than its factorization.

28476560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472 (or 466 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 28476560 is about 5336.3433172913. The cubic root of 28476560 is about 305.3719729306.

The spelling of 28476560 in words is "twenty-eight million, four hundred seventy-six thousand, five hundred sixty".