1204140202400 has 72 divisors (see below), whose sum is σ = 2940407075340. Its totient is φ = 481525032960.

The previous prime is 1204140202373. The next prime is 1204140202417. The reversal of 1204140202400 is 42020414021.

It can be written as a sum of positive squares in 6 ways, for example, as 69719233936 + 1134420968464 = 264044^2 + 1065092^2 .

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

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 11 ways as a sum of consecutive naturals, for example, 2764292 + ... + 3170108.

Almost surely, 2^{1204140202400} is an apocalyptic number.

1204140202400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1204140202400 is an abundant number, since it is smaller than the sum of its proper divisors (1736266872940).

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

1204140202400 is a wasteful number, since it uses less digits than its factorization.

1204140202400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409546 (or 409533 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 1204140202400 its reverse (42020414021), we get a palindrome (1246160616421).

The spelling of 1204140202400 in words is "one trillion, two hundred four billion, one hundred forty million, two hundred two thousand, four hundred".