1320499200 has 144 divisors (see below), whose sum is σ = 4365892440. Its totient is φ = 352092160.

The previous prime is 1320499199. The next prime is 1320499217. The reversal of 1320499200 is 29940231.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 149302 + ... + 157898.

Almost surely, 2^1320499200 is an apocalyptic number.

1320499200 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 1320499200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2182946220).

1320499200 is an abundant number, since it is smaller than the sum of its proper divisors (3045393240).

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

1320499200 is an equidigital number, since it uses as much as digits as its factorization.

1320499200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8632 (or 8607 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 1320499200 is about 36338.6736136585. The cubic root of 1320499200 is about 1097.0995766657.

The spelling of 1320499200 in words is "one billion, three hundred twenty million, four hundred ninety-nine thousand, two hundred".