28930550 has 48 divisors (see below), whose sum is σ = 61281792. Its totient is φ = 10058400.

The previous prime is 28930501. The next prime is 28930567. The reversal of 28930550 is 5503982.

It is a happy number.

It is a congruent number.

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, 11507 + ... + 13793.

It is an arithmetic number, because the mean of its divisors is an integer number (1276704).

Almost surely, 2^28930550 is an apocalyptic number.

28930550 is an abundant number, since it is smaller than the sum of its proper divisors (32351242).

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

28930550 is a wasteful number, since it uses less digits than its factorization.

28930550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2333 (or 2328 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 28930550 is about 5378.7126712625. The cubic root of 28930550 is about 306.9862308898.

The spelling of 28930550 in words is "twenty-eight million, nine hundred thirty thousand, five hundred fifty".