1322887386340 has 24 divisors (see below), whose sum is σ = 2991760705080. Its totient is φ = 488450727168.

The previous prime is 1322887386323. The next prime is 1322887386391. The reversal of 1322887386340 is 436837882231.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 17864460964 + 1305022925376 = 133658^2 + 1142376^2 .

It is a hoax number, since the sum of its digits (55) coincides with the sum of the digits of its distinct prime factors.

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 7 ways as a sum of consecutive naturals, for example, 2544013945 + ... + 2544014464.

It is an arithmetic number, because the mean of its divisors is an integer number (124656696045).

Almost surely, 2^{1322887386340} is an apocalyptic number.

1322887386340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1322887386340 is an abundant number, since it is smaller than the sum of its proper divisors (1668873318740).

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

1322887386340 is a wasteful number, since it uses less digits than its factorization.

1322887386340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5088028431 (or 5088028429 counting only the distinct ones).

The product of its (nonzero) digits is 9289728, while the sum is 55.

The spelling of 1322887386340 in words is "one trillion, three hundred twenty-two billion, eight hundred eighty-seven million, three hundred eighty-six thousand, three hundred forty".