28055030 has 16 divisors (see below), whose sum is σ = 50613120. Its totient is φ = 11196672.

The previous prime is 28055021. The next prime is 28055047. The reversal of 28055030 is 3055082.

It is a junction number, because it is equal to n+sod(n) for n = 28054987 and 28055005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1862 + ... + 7718.

It is an arithmetic number, because the mean of its divisors is an integer number (3163320).

Almost surely, 2^28055030 is an apocalyptic number.

28055030 is a deficient number, since it is larger than the sum of its proper divisors (22558090).

28055030 is a wasteful number, since it uses less digits than its factorization.

28055030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6343.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 28055030 is about 5296.6999159854. The cubic root of 28055030 is about 303.8576997326.

The spelling of 28055030 in words is "twenty-eight million, fifty-five thousand, thirty".