1324045452440 has 64 divisors (see below), whose sum is σ = 3138917184000. Its totient is φ = 501260330880.

The previous prime is 1324045452427. The next prime is 1324045452469. The reversal of 1324045452440 is 442545404231.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a junction number, because it is equal to n+sod(n) for n = 1324045452394 and 1324045452403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48746 + ... + 1628025.

It is an arithmetic number, because the mean of its divisors is an integer number (49045581000).

Almost surely, 2^{1324045452440} is an apocalyptic number.

1324045452440 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 1324045452440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1569458592000).

1324045452440 is an abundant number, since it is smaller than the sum of its proper divisors (1814871731560).

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

1324045452440 is a wasteful number, since it uses less digits than its factorization.

1324045452440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1677840 (or 1677836 counting only the distinct ones).

The product of its (nonzero) digits is 307200, while the sum is 38.

The spelling of 1324045452440 in words is "one trillion, three hundred twenty-four billion, forty-five million, four hundred fifty-two thousand, four hundred forty".