30021404500 has 24 divisors (see below), whose sum is σ = 65566748520. Its totient is φ = 12008561600.

The previous prime is 30021404477. The next prime is 30021404513. The reversal of 30021404500 is 540412003.

It can be written as a sum of positive squares in 4 ways, for example, as 6143737924 + 23877666576 = 78382^2 + 154524^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30020905 + ... + 30021904.

It is an arithmetic number, because the mean of its divisors is an integer number (2731947855).

Almost surely, 2^30021404500 is an apocalyptic number.

It is an amenable number.

30021404500 is an abundant number, since it is smaller than the sum of its proper divisors (35545344020).

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

30021404500 is a wasteful number, since it uses less digits than its factorization.

30021404500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60042828 (or 60042816 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

Adding to 30021404500 its reverse (540412003), we get a palindrome (30561816503).

The spelling of 30021404500 in words is "thirty billion, twenty-one million, four hundred four thousand, five hundred".