1322460881640 has 384 divisors, whose sum is σ = 4502540390400. Its totient is φ = 336230369280.

The previous prime is 1322460881633. The next prime is 1322460881641. The reversal of 1322460881640 is 461880642231.

1322460881640 is a `hidden beast` number, since 1 + 3 + 2 + 24 + 608 + 8 + 16 + 4 + 0 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (1322460881641) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 491072134 + ... + 491074826.

It is an arithmetic number, because the mean of its divisors is an integer number (11725365600).

Almost surely, 2^{1322460881640} is an apocalyptic number.

1322460881640 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 1322460881640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2251270195200).

1322460881640 is an abundant number, since it is smaller than the sum of its proper divisors (3180079508760).

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

1322460881640 is a wasteful number, since it uses less digits than its factorization.

1322460881640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3377 (or 3370 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 45.

The spelling of 1322460881640 in words is "one trillion, three hundred twenty-two billion, four hundred sixty million, eight hundred eighty-one thousand, six hundred forty".