20432340200 has 48 divisors (see below), whose sum is σ = 47824087500. Its totient is φ = 8118072320.

The previous prime is 20432340199. The next prime is 20432340233. The reversal of 20432340200 is 204323402.

It can be written as a sum of positive squares in 6 ways, for example, as 272316004 + 20160024196 = 16502^2 + 141986^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 313025 + ... + 372624.

Almost surely, 2^20432340200 is an apocalyptic number.

20432340200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20432340200 is an abundant number, since it is smaller than the sum of its proper divisors (27391747300).

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

20432340200 is a wasteful number, since it uses less digits than its factorization.

20432340200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 685814 (or 685805 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

Adding to 20432340200 its reverse (204323402), we get a palindrome (20636663602).

20432340200 divided by its reverse (204323402) gives a square (100 = 10²).

The spelling of 20432340200 in words is "twenty billion, four hundred thirty-two million, three hundred forty thousand, two hundred".