20430232224 has 96 divisors (see below), whose sum is σ = 55108408320. Its totient is φ = 6624052992.

The previous prime is 20430232217. The next prime is 20430232231. The reversal of 20430232224 is 42223203402.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20430232217) and next prime (20430232231).

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 20430232194 and 20430232203.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 721567 + ... + 749345.

It is an arithmetic number, because the mean of its divisors is an integer number (574045920).

Almost surely, 2^20430232224 is an apocalyptic number.

20430232224 is a gapful number since it is divisible by the number (24) 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 20430232224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27554204160).

20430232224 is an abundant number, since it is smaller than the sum of its proper divisors (34678176096).

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

20430232224 is a wasteful number, since it uses less digits than its factorization.

20430232224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28002 (or 27994 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 24.

Adding to 20430232224 its reverse (42223203402), we get a palindrome (62653435626).

The spelling of 20430232224 in words is "twenty billion, four hundred thirty million, two hundred thirty-two thousand, two hundred twenty-four".