1322434641920 has 360 divisors, whose sum is σ = 3743312303304. Its totient is φ = 447096029184.

The previous prime is 1322434641881. The next prime is 1322434641953. The reversal of 1322434641920 is 291464342231.

It can be written as a sum of positive squares in 4 ways, for example, as 928055296 + 1321506586624 = 30464^2 + 1149568^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 293025584 + ... + 293030096.

Almost surely, 2^{1322434641920} is an apocalyptic number.

1322434641920 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 1322434641920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1871656151652).

1322434641920 is an abundant number, since it is smaller than the sum of its proper divisors (2420877661384).

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

1322434641920 is an frugal number, since it uses more digits than its factorization.

1322434641920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4633 (or 4600 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 41.

The spelling of 1322434641920 in words is "one trillion, three hundred twenty-two billion, four hundred thirty-four million, six hundred forty-one thousand, nine hundred twenty".