30828355 has 16 divisors (see below), whose sum is σ = 39168000. Its totient is φ = 23228640.

The previous prime is 30828341. The next prime is 30828359. The reversal of 30828355 is 55382803.

It is not a de Polignac number, because 30828355 - 2⁵ = 30828323 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30828355.

It is not an unprimeable number, because it can be changed into a prime (30828359) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17296 + ... + 18994.

It is an arithmetic number, because the mean of its divisors is an integer number (2448000).

Almost surely, 2^30828355 is an apocalyptic number.

30828355 is a deficient number, since it is larger than the sum of its proper divisors (8339645).

30828355 is a wasteful number, since it uses less digits than its factorization.

30828355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1914.

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 30828355 is about 5552.3287906967. The cubic root of 30828355 is about 313.5572044534.

The spelling of 30828355 in words is "thirty million, eight hundred twenty-eight thousand, three hundred fifty-five".