30504135420 has 144 divisors (see below), whose sum is σ = 101344763520. Its totient is φ = 7365360000.

The previous prime is 30504135407. The next prime is 30504135449. The reversal of 30504135420 is 2453140503.

30504135420 is a `hidden beast` number, since 3 + 0 + 504 + 135 + 4 + 20 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 466291 + ... + 527669.

It is an arithmetic number, because the mean of its divisors is an integer number (703783080).

Almost surely, 2^30504135420 is an apocalyptic number.

30504135420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30504135420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50672381760).

30504135420 is an abundant number, since it is smaller than the sum of its proper divisors (70840628100).

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

30504135420 is a wasteful number, since it uses less digits than its factorization.

30504135420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61656 (or 61651 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

Adding to 30504135420 its reverse (2453140503), we get a palindrome (32957275923).

The spelling of 30504135420 in words is "thirty billion, five hundred four million, one hundred thirty-five thousand, four hundred twenty".