1227383942400 has 2592 divisors, whose sum is σ = 5769550725120. Its totient is φ = 241532928000.

The previous prime is 1227383942347. The next prime is 1227383942417. The reversal of 1227383942400 is 42493837221.

1227383942400 is a `hidden beast` number, since 1 + 2 + 27 + 383 + 9 + 4 + 240 + 0 = 666.

It is a super-2 number, since 2×1227383942400² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

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 287 ways as a sum of consecutive naturals, for example, 10861804744 + ... + 10861804856.

Almost surely, 2^{1227383942400} is an apocalyptic number.

1227383942400 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 1227383942400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2884775362560).

1227383942400 is an abundant number, since it is smaller than the sum of its proper divisors (4542166782720).

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

1227383942400 is a wasteful number, since it uses less digits than its factorization.

1227383942400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273 (or 251 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The spelling of 1227383942400 in words is "one trillion, two hundred twenty-seven billion, three hundred eighty-three million, nine hundred forty-two thousand, four hundred".