1336927680 has 392 divisors, whose sum is σ = 5217072624. Its totient is φ = 323481600.

The previous prime is 1336927679. The next prime is 1336927687. The reversal of 1336927680 is 867296331.

1336927680 is a `hidden beast` number, since 13 + 369 + 276 + 8 + 0 = 666.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1336927687) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 2565820 + ... + 2566340.

Almost surely, 2^1336927680 is an apocalyptic number.

1336927680 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 1336927680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2608536312).

1336927680 is an abundant number, since it is smaller than the sum of its proper divisors (3880144944).

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

1336927680 is an equidigital number, since it uses as much as digits as its factorization.

1336927680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567 (or 542 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The square root of 1336927680 is about 36564.0216606434. The cubic root of 1336927680 is about 1101.6305515043.

The spelling of 1336927680 in words is "one billion, three hundred thirty-six million, nine hundred twenty-seven thousand, six hundred eighty".