30504138 has 16 divisors (see below), whose sum is σ = 69723840. Its totient is φ = 8715456.

The previous prime is 30504119. The next prime is 30504151. The reversal of 30504138 is 83140503.

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, 363103 + ... + 363186.

It is an arithmetic number, because the mean of its divisors is an integer number (4357740).

Almost surely, 2^30504138 is an apocalyptic number.

30504138 is an abundant number, since it is smaller than the sum of its proper divisors (39219702).

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

30504138 is a wasteful number, since it uses less digits than its factorization.

30504138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 726301.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 30504138 is about 5523.0551328047. The cubic root of 30504138 is about 312.4541176371.

The spelling of 30504138 in words is "thirty million, five hundred four thousand, one hundred thirty-eight".