1300940920 has 64 divisors (see below), whose sum is σ = 3007319040. Its totient is φ = 506217600.

The previous prime is 1300940891. The next prime is 1300940951. The reversal of 1300940920 is 290490031.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 464725 + ... + 467515.

It is an arithmetic number, because the mean of its divisors is an integer number (46989360).

Almost surely, 2^1300940920 is an apocalyptic number.

1300940920 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 1300940920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1503659520).

1300940920 is an abundant number, since it is smaller than the sum of its proper divisors (1706378120).

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

1300940920 is a wasteful number, since it uses less digits than its factorization.

1300940920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3116 (or 3112 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 1300940920 is about 36068.5586071858. The cubic root of 1300940920 is about 1091.6561306858.

The spelling of 1300940920 in words is "one billion, three hundred million, nine hundred forty thousand, nine hundred twenty".