20344201023400 has 48 divisors (see below), whose sum is σ = 47301861817440. Its totient is φ = 8137406097600.

The previous prime is 20344201023383. The next prime is 20344201023413. The reversal of 20344201023400 is 432010244302.

It is a happy number.

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

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, 4285915 + ... + 7684885.

It is an arithmetic number, because the mean of its divisors is an integer number (985455454530).

Almost surely, 2^{20344201023400} is an apocalyptic number.

20344201023400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20344201023400 is an abundant number, since it is smaller than the sum of its proper divisors (26957660794040).

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

20344201023400 is a wasteful number, since it uses less digits than its factorization.

20344201023400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3428914 (or 3428905 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 20344201023400 its reverse (432010244302), we get a palindrome (20776211267702).

The spelling of 20344201023400 in words is "twenty trillion, three hundred forty-four billion, two hundred one million, twenty-three thousand, four hundred".