1330016720 has 40 divisors (see below), whose sum is σ = 3255044640. Its totient is φ = 504005760.

The previous prime is 1330016717. The next prime is 1330016729. The reversal of 1330016720 is 276100331.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1330016729) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 435986 + ... + 439025.

It is an arithmetic number, because the mean of its divisors is an integer number (81376116).

Almost surely, 2^1330016720 is an apocalyptic number.

1330016720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1330016720 is an abundant number, since it is smaller than the sum of its proper divisors (1925027920).

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

1330016720 is a wasteful number, since it uses less digits than its factorization.

1330016720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 875043 (or 875037 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 1330016720 is about 36469.3942916523. The cubic root of 1330016720 is about 1099.7290572361.

The spelling of 1330016720 in words is "one billion, three hundred thirty million, sixteen thousand, seven hundred twenty".