1224794053440 has 560 divisors, whose sum is σ = 4440938834640. Its totient is φ = 320336363520.

The previous prime is 1224794053411. The next prime is 1224794053451. The reversal of 1224794053440 is 443504974221.

1224794053440 is a `hidden beast` number, since 1 + 2 + 2 + 4 + 79 + 4 + 0 + 534 + 40 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 121739583744 + 1103054469696 = 348912^2 + 1050264^2 .

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 polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 684624066 + ... + 684625854.

It is an arithmetic number, because the mean of its divisors is an integer number (7930247919).

Almost surely, 2^{1224794053440} is an apocalyptic number.

1224794053440 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 1224794053440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2220469417320).

1224794053440 is an abundant number, since it is smaller than the sum of its proper divisors (3216144781200).

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

1224794053440 is a wasteful number, since it uses less digits than its factorization.

1224794053440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2312 (or 2293 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 45.

The spelling of 1224794053440 in words is "one trillion, two hundred twenty-four billion, seven hundred ninety-four million, fifty-three thousand, four hundred forty".