20040344300 has 18 divisors (see below), whose sum is σ = 43487547348. Its totient is φ = 8016137680.

The previous prime is 20040344287. The next prime is 20040344309. The reversal of 20040344300 is 344304002.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (20040344309) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 100201622 + ... + 100201821.

Almost surely, 2^20040344300 is an apocalyptic number.

20040344300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20040344300 is an abundant number, since it is smaller than the sum of its proper divisors (23447203048).

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

20040344300 is a wasteful number, since it uses less digits than its factorization.

20040344300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200403457 (or 200403450 counting only the distinct ones).

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

Adding to 20040344300 its reverse (344304002), we get a palindrome (20384648302).

The spelling of 20040344300 in words is "twenty billion, forty million, three hundred forty-four thousand, three hundred".