20224432320 has 56 divisors (see below), whose sum is σ = 64212575664. Its totient is φ = 5393181696.

The previous prime is 20224432303. The next prime is 20224432343. The reversal of 20224432320 is 2323442202.

It is a happy number.

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

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, 10532599 + ... + 10534518.

Almost surely, 2^20224432320 is an apocalyptic number.

20224432320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20224432320 is an abundant number, since it is smaller than the sum of its proper divisors (43988143344).

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

20224432320 is a wasteful number, since it uses less digits than its factorization.

20224432320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21067137 (or 21067127 counting only the distinct ones).

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

Adding to 20224432320 its reverse (2323442202), we get a palindrome (22547874522).

The spelling of 20224432320 in words is "twenty billion, two hundred twenty-four million, four hundred thirty-two thousand, three hundred twenty".