20400232324 has 12 divisors (see below), whose sum is σ = 36047013184. Its totient is φ = 10101085704.

The previous prime is 20400232289. The next prime is 20400232343. The reversal of 20400232324 is 42323200402.

It is a junction number, because it is equal to n+sod(n) for n = 20400232295 and 20400232304.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24757152 + ... + 24757975.

Almost surely, 2^20400232324 is an apocalyptic number.

It is an amenable number.

20400232324 is a deficient number, since it is larger than the sum of its proper divisors (15646780860).

20400232324 is a wasteful number, since it uses less digits than its factorization.

20400232324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49515234 (or 49515232 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 22.

Adding to 20400232324 its reverse (42323200402), we get a palindrome (62723432726).

The spelling of 20400232324 in words is "twenty billion, four hundred million, two hundred thirty-two thousand, three hundred twenty-four".