1204143344400 has 120 divisors (see below), whose sum is σ = 3859442731840. Its totient is φ = 320924229120.

The previous prime is 1204143344363. The next prime is 1204143344449. The reversal of 1204143344400 is 44433414021.

It is a tau number, because it is divible by the number of its divisors (120).

It is a super-2 number, since 2×1204143344400² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1858206 + ... + 2420994.

Almost surely, 2^{1204143344400} is an apocalyptic number.

1204143344400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1204143344400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1929721365920).

1204143344400 is an abundant number, since it is smaller than the sum of its proper divisors (2655299387440).

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

1204143344400 is a wasteful number, since it uses less digits than its factorization.

1204143344400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564593 (or 564582 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 1204143344400 its reverse (44433414021), we get a palindrome (1248576758421).

The spelling of 1204143344400 in words is "one trillion, two hundred four billion, one hundred forty-three million, three hundred forty-four thousand, four hundred".