30535728 has 40 divisors (see below), whose sum is σ = 79096128. Its totient is φ = 10151232.

The previous prime is 30535727. The next prime is 30535733. The reversal of 30535728 is 82753503.

It is not an unprimeable number, because it can be changed into a prime (30535721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25675 + ... + 26837.

Almost surely, 2^30535728 is an apocalyptic number.

It is an amenable number.

30535728 is an abundant number, since it is smaller than the sum of its proper divisors (48560400).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30535728 is a wasteful number, since it uses less digits than its factorization.

30535728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1721 (or 1715 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 33.

The square root of 30535728 is about 5525.9142230042. The cubic root of 30535728 is about 312.5619392958.

The spelling of 30535728 in words is "thirty million, five hundred thirty-five thousand, seven hundred twenty-eight".