28322030 has 16 divisors (see below), whose sum is σ = 55614384. Its totient is φ = 10298880.

The previous prime is 28322011. The next prime is 28322071. The reversal of 28322030 is 3022382.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 28321993 and 28322011.

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, 128627 + ... + 128846.

It is an arithmetic number, because the mean of its divisors is an integer number (3475899).

Almost surely, 2^28322030 is an apocalyptic number.

28322030 is a deficient number, since it is larger than the sum of its proper divisors (27292354).

28322030 is a wasteful number, since it uses less digits than its factorization.

28322030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257491.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 28322030 is about 5321.8446050218. The cubic root of 28322030 is about 304.8185967785.

The spelling of 28322030 in words is "twenty-eight million, three hundred twenty-two thousand, thirty".