30021240024 has 24 divisors (see below), whose sum is σ = 81307525260. Its totient is φ = 10007079984.

The previous prime is 30021240013. The next prime is 30021240077. The reversal of 30021240024 is 42004212003.

30021240024 is a `hidden beast` number, since 30 + 0 + 212 + 400 + 24 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 30021239979 and 30021240006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 208480762 + ... + 208480905.

Almost surely, 2^30021240024 is an apocalyptic number.

It is an amenable number.

30021240024 is an abundant number, since it is smaller than the sum of its proper divisors (51286285236).

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

30021240024 is a wasteful number, since it uses less digits than its factorization.

30021240024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416961679 (or 416961672 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 30021240024 its reverse (42004212003), we get a palindrome (72025452027).

The spelling of 30021240024 in words is "thirty billion, twenty-one million, two hundred forty thousand, twenty-four".