1332611280 has 720 divisors, whose sum is σ = 6151856256. Its totient is φ = 249661440.

The previous prime is 1332611243. The next prime is 1332611299. The reversal of 1332611280 is 821162331.

It is a happy number.

1332611280 is a `hidden beast` number, since 13 + 32 + 611 + 2 + 8 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (720).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 30990939 + ... + 30990981.

Almost surely, 2^1332611280 is an apocalyptic number.

1332611280 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 1332611280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3075928128).

1332611280 is an abundant number, since it is smaller than the sum of its proper divisors (4819244976).

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

1332611280 is a wasteful number, since it uses less digits than its factorization.

1332611280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136 (or 84 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 1332611280 is about 36504.9487056207. The cubic root of 1332611280 is about 1100.4436997915.

The spelling of 1332611280 in words is "one billion, three hundred thirty-two million, six hundred eleven thousand, two hundred eighty".