30828874 has 8 divisors (see below), whose sum is σ = 46402020. Its totient is φ = 15361536.

The previous prime is 30828859. The next prime is 30828877. The reversal of 30828874 is 47882803.

It can be written as a sum of positive squares in 2 ways, for example, as 22155849 + 8673025 = 4707^2 + 2945^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (30828877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25719 + ... + 26890.

Almost surely, 2^30828874 is an apocalyptic number.

30828874 is a deficient number, since it is larger than the sum of its proper divisors (15573146).

30828874 is a wasteful number, since it uses less digits than its factorization.

30828874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52904.

The product of its (nonzero) digits is 86016, while the sum is 40.

The square root of 30828874 is about 5552.3755276458. The cubic root of 30828874 is about 313.5589640378.

The spelling of 30828874 in words is "thirty million, eight hundred twenty-eight thousand, eight hundred seventy-four".