30428589 has 16 divisors (see below), whose sum is σ = 43072128. Its totient is φ = 19041792.

The previous prime is 30428581. The next prime is 30428591. The reversal of 30428589 is 98582403.

It is a happy number.

It is not a de Polignac number, because 30428589 - 2³ = 30428581 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30428581) 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 15 ways as a sum of consecutive naturals, for example, 30984 + ... + 31950.

It is an arithmetic number, because the mean of its divisors is an integer number (2692008).

Almost surely, 2^30428589 is an apocalyptic number.

It is an amenable number.

30428589 is a deficient number, since it is larger than the sum of its proper divisors (12643539).

30428589 is a wasteful number, since it uses less digits than its factorization.

30428589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1604.

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 30428589 is about 5516.2114716533. The cubic root of 30428589 is about 312.1959547300.

The spelling of 30428589 in words is "thirty million, four hundred twenty-eight thousand, five hundred eighty-nine".