1320002240 has 56 divisors (see below), whose sum is σ = 3151967280. Its totient is φ = 526537728.

The previous prime is 1320002239. The next prime is 1320002267. The reversal of 1320002240 is 422000231.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113831 + ... + 124889.

It is an arithmetic number, because the mean of its divisors is an integer number (56285130).

Almost surely, 2^1320002240 is an apocalyptic number.

1320002240 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 1320002240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1575983640).

1320002240 is an abundant number, since it is smaller than the sum of its proper divisors (1831965040).

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

1320002240 is a wasteful number, since it uses less digits than its factorization.

1320002240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11449 (or 11439 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 1320002240 is about 36331.8350761422. The cubic root of 1320002240 is about 1096.9619309895.

Adding to 1320002240 its reverse (422000231), we get a palindrome (1742002471).

The spelling of 1320002240 in words is "one billion, three hundred twenty million, two thousand, two hundred forty".