30428770 has 16 divisors (see below), whose sum is σ = 57153600. Its totient is φ = 11642224.

The previous prime is 30428737. The next prime is 30428789. The reversal of 30428770 is 7782403.

It is an unprimeable number.

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, 65920 + ... + 66379.

It is an arithmetic number, because the mean of its divisors is an integer number (3572100).

Almost surely, 2^30428770 is an apocalyptic number.

30428770 is a deficient number, since it is larger than the sum of its proper divisors (26724830).

30428770 is a wasteful number, since it uses less digits than its factorization.

30428770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132329.

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 30428770 is about 5516.2278778165. The cubic root of 30428770 is about 312.1965737460.

The spelling of 30428770 in words is "thirty million, four hundred twenty-eight thousand, seven hundred seventy".