30128034 has 32 divisors (see below), whose sum is σ = 64788480. Its totient is φ = 9310032.

The previous prime is 30128011. The next prime is 30128039. The reversal of 30128034 is 43082103.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 30128034.

It is not an unprimeable number, because it can be changed into a prime (30128039) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2547 + ... + 8169.

It is an arithmetic number, because the mean of its divisors is an integer number (2024640).

Almost surely, 2^30128034 is an apocalyptic number.

30128034 is an abundant number, since it is smaller than the sum of its proper divisors (34660446).

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

30128034 is a wasteful number, since it uses less digits than its factorization.

30128034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5694.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 30128034 is about 5488.9009828927. The cubic root of 30128034 is about 311.1646581396.

The spelling of 30128034 in words is "thirty million, one hundred twenty-eight thousand, thirty-four".