28030460 has 24 divisors (see below), whose sum is σ = 60456480. Its totient is φ = 10908864.

The previous prime is 28030459. The next prime is 28030477. The reversal of 28030460 is 6403082.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18200 + ... + 19679.

It is an arithmetic number, because the mean of its divisors is an integer number (2519020).

Almost surely, 2^28030460 is an apocalyptic number.

28030460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28030460 is an abundant number, since it is smaller than the sum of its proper divisors (32426020).

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

28030460 is a wasteful number, since it uses less digits than its factorization.

28030460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37925 (or 37923 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 28030460 is about 5294.3800392492. The cubic root of 28030460 is about 303.7689697829.

The spelling of 28030460 in words is "twenty-eight million, thirty thousand, four hundred sixty".