1346443280 has 240 divisors, whose sum is σ = 3979995264. Its totient is φ = 414535680.

The previous prime is 1346443279. The next prime is 1346443289. The reversal of 1346443280 is 823446431.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 1346443280.

It is not an unprimeable number, because it can be changed into a prime (1346443289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3880067 + ... + 3880413.

Almost surely, 2^1346443280 is an apocalyptic number.

1346443280 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 1346443280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1989997632).

1346443280 is an abundant number, since it is smaller than the sum of its proper divisors (2633551984).

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

1346443280 is a wasteful number, since it uses less digits than its factorization.

1346443280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434 (or 415 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 35.

The square root of 1346443280 is about 36693.9133917330. The cubic root of 1346443280 is about 1104.2379982935.

The spelling of 1346443280 in words is "one billion, three hundred forty-six million, four hundred forty-three thousand, two hundred eighty".