28550466 has 48 divisors (see below), whose sum is σ = 71008704. Its totient is φ = 8121312.

The previous prime is 28550453. The next prime is 28550477. The reversal of 28550466 is 66405582.

It is a self number, because there is not a number n which added to its sum of digits gives 28550466.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43396 + ... + 44048.

It is an arithmetic number, because the mean of its divisors is an integer number (1479348).

Almost surely, 2^28550466 is an apocalyptic number.

28550466 is an abundant number, since it is smaller than the sum of its proper divisors (42458238).

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

28550466 is a wasteful number, since it uses less digits than its factorization.

28550466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1015 (or 1012 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The square root of 28550466 is about 5343.2636094432. The cubic root of 28550466 is about 305.6359248105.

The spelling of 28550466 in words is "twenty-eight million, five hundred fifty thousand, four hundred sixty-six".