1326616480 has 192 divisors, whose sum is σ = 3893944320. Its totient is φ = 416793600.

The previous prime is 1326616477. The next prime is 1326616481. The reversal of 1326616480 is 846166231.

It is a happy number.

It is a super-2 number, since 2×1326616480² = 3519822570015180800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1326616481) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 658675 + ... + 660685.

It is an arithmetic number, because the mean of its divisors is an integer number (20280960).

Almost surely, 2^1326616480 is an apocalyptic number.

1326616480 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 1326616480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1946972160).

1326616480 is an abundant number, since it is smaller than the sum of its proper divisors (2567327840).

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

1326616480 is a wasteful number, since it uses less digits than its factorization.

1326616480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2083 (or 2075 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 1326616480 is about 36422.7467388169. The cubic root of 1326616480 is about 1098.7910906178.

The spelling of 1326616480 in words is "one billion, three hundred twenty-six million, six hundred sixteen thousand, four hundred eighty".