30428885 has 8 divisors (see below), whose sum is σ = 38102400. Its totient is φ = 23284624.

The previous prime is 30428873. The next prime is 30428897. The reversal of 30428885 is 58882403.

It is an interprime number because it is at equal distance from previous prime (30428873) and next prime (30428897).

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

It is a cyclic number.

It is not a de Polignac number, because 30428885 - 2⁴ = 30428869 is a prime.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 132185 + ... + 132414.

It is an arithmetic number, because the mean of its divisors is an integer number (4762800).

Almost surely, 2^30428885 is an apocalyptic number.

It is an amenable number.

30428885 is a deficient number, since it is larger than the sum of its proper divisors (7673515).

30428885 is a wasteful number, since it uses less digits than its factorization.

30428885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264627.

The product of its (nonzero) digits is 61440, while the sum is 38.

The square root of 30428885 is about 5516.2383015965. The cubic root of 30428885 is about 312.1969670423.

It can be divided in two parts, 30428 and 885, that added together give a palindrome (31313).

The spelling of 30428885 in words is "thirty million, four hundred twenty-eight thousand, eight hundred eighty-five".