28804030 has 16 divisors (see below), whose sum is σ = 52079760. Its totient is φ = 11469952.

The previous prime is 28803979. The next prime is 28804031. The reversal of 28804030 is 3040882.

It is a junction number, because it is equal to n+sod(n) for n = 28803986 and 28804004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28804031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4075 + ... + 8614.

It is an arithmetic number, because the mean of its divisors is an integer number (3254985).

Almost surely, 2^28804030 is an apocalyptic number.

28804030 is a deficient number, since it is larger than the sum of its proper divisors (23275730).

28804030 is a wasteful number, since it uses less digits than its factorization.

28804030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12923.

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 28804030 is about 5366.9386059466. The cubic root of 28804030 is about 306.5380696379.

The spelling of 28804030 in words is "twenty-eight million, eight hundred four thousand, thirty".