1324988280 has 640 divisors, whose sum is σ = 5720647680. Its totient is φ = 267079680.

The previous prime is 1324988261. The next prime is 1324988293. The reversal of 1324988280 is 828894231.

1324988280 is a `hidden beast` number, since 1 + 3 + 2 + 498 + 82 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 11725504 + ... + 11725616.

It is an arithmetic number, because the mean of its divisors is an integer number (8938512).

Almost surely, 2^1324988280 is an apocalyptic number.

1324988280 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 1324988280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2860323840).

1324988280 is an abundant number, since it is smaller than the sum of its proper divisors (4395659400).

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

1324988280 is a wasteful number, since it uses less digits than its factorization.

1324988280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201 (or 188 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 45.

The square root of 1324988280 is about 36400.3884594656. The cubic root of 1324988280 is about 1098.3413791147.

The spelling of 1324988280 in words is "one billion, three hundred twenty-four million, nine hundred eighty-eight thousand, two hundred eighty".