20440354300 has 18 divisors (see below), whose sum is σ = 44355569048. Its totient is φ = 8176141680.

The previous prime is 20440354289. The next prime is 20440354349. The reversal of 20440354300 is 345304402.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 102201672 + ... + 102201871.

Almost surely, 2^20440354300 is an apocalyptic number.

20440354300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20440354300 is an abundant number, since it is smaller than the sum of its proper divisors (23915214748).

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

20440354300 is a wasteful number, since it uses less digits than its factorization.

20440354300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204403557 (or 204403550 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 25.

Adding to 20440354300 its reverse (345304402), we get a palindrome (20785658702).

The spelling of 20440354300 in words is "twenty billion, four hundred forty million, three hundred fifty-four thousand, three hundred".