1242402464400 has 60 divisors (see below), whose sum is σ = 3979829231472. Its totient is φ = 331307323520.

The previous prime is 1242402464383. The next prime is 1242402464473. The reversal of 1242402464400 is 44642042421.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (60).

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, 517666494 + ... + 517668893.

Almost surely, 2^{1242402464400} is an apocalyptic number.

1242402464400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1242402464400 is an abundant number, since it is smaller than the sum of its proper divisors (2737426767072).

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

1242402464400 is a wasteful number, since it uses less digits than its factorization.

1242402464400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1035335408 (or 1035335397 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 33.

The spelling of 1242402464400 in words is "one trillion, two hundred forty-two billion, four hundred two million, four hundred sixty-four thousand, four hundred".