28594930 has 72 divisors (see below), whose sum is σ = 65456748. Its totient is φ = 8914752.

The previous prime is 28594913. The next prime is 28594933. The reversal of 28594930 is 3949582.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 26615281 + 1979649 = 5159^2 + 1407^2 .

It is not an unprimeable number, because it can be changed into a prime (28594933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 426757 + ... + 426823.

Almost surely, 2^28594930 is an apocalyptic number.

28594930 is an abundant number, since it is smaller than the sum of its proper divisors (36861818).

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

28594930 is a wasteful number, since it uses less digits than its factorization.

28594930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168 (or 94 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 28594930 is about 5347.4227437150. The cubic root of 28594930 is about 305.7945065423.

The spelling of 28594930 in words is "twenty-eight million, five hundred ninety-four thousand, nine hundred thirty".