1244000403200 has 54 divisors (see below), whose sum is σ = 3079095388824. Its totient is φ = 497600158720.

The previous prime is 1244000403197. The next prime is 1244000403221. The reversal of 1244000403200 is 23040004421.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 97181132 + ... + 97193931.

Almost surely, 2^{1244000403200} is an apocalyptic number.

1244000403200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1244000403200 is an abundant number, since it is smaller than the sum of its proper divisors (1835094985624).

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

1244000403200 is an equidigital number, since it uses as much as digits as its factorization.

1244000403200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194375089 (or 194375070 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 1244000403200 its reverse (23040004421), we get a palindrome (1267040407621).

The spelling of 1244000403200 in words is "one trillion, two hundred forty-four billion, four hundred three thousand, two hundred".