20430715024 has 10 divisors (see below), whose sum is σ = 39584510390. Its totient is φ = 10215357504.

The previous prime is 20430715009. The next prime is 20430715031. The reversal of 20430715024 is 42051703402.

It can be written as a sum of positive squares in only one way, i.e., 14825497600 + 5605217424 = 121760^2 + 74868^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20430714983 and 20430715001.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 638459829 + ... + 638459860.

It is an arithmetic number, because the mean of its divisors is an integer number (3958451039).

Almost surely, 2^20430715024 is an apocalyptic number.

It is an amenable number.

20430715024 is a deficient number, since it is larger than the sum of its proper divisors (19153795366).

20430715024 is a wasteful number, since it uses less digits than its factorization.

20430715024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1276919697 (or 1276919691 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 28.

The spelling of 20430715024 in words is "twenty billion, four hundred thirty million, seven hundred fifteen thousand, twenty-four".