1323167280 has 80 divisors (see below), whose sum is σ = 4134211584. Its totient is φ = 350058240.

The previous prime is 1323167213. The next prime is 1323167297. The reversal of 1323167280 is 827613231.

It is a tau number, because it is divible by the number of its divisors (80).

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8775 + ... + 52185.

Almost surely, 2^1323167280 is an apocalyptic number.

1323167280 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 1323167280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2067105792).

1323167280 is an abundant number, since it is smaller than the sum of its proper divisors (2811044304).

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

1323167280 is a wasteful number, since it uses less digits than its factorization.

1323167280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43554 (or 43548 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 1323167280 is about 36375.3663899073. The cubic root of 1323167280 is about 1097.8379792852.

The spelling of 1323167280 in words is "one billion, three hundred twenty-three million, one hundred sixty-seven thousand, two hundred eighty".