1306900980 has 240 divisors, whose sum is σ = 5111922816. Its totient is φ = 271537920.

The previous prime is 1306900937. The next prime is 1306900981. The reversal of 1306900980 is 890096031.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1306900981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 119502 + ... + 129978.

Almost surely, 2^1306900980 is an apocalyptic number.

1306900980 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 1306900980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2555961408).

1306900980 is an abundant number, since it is smaller than the sum of its proper divisors (3805021836).

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

1306900980 is a wasteful number, since it uses less digits than its factorization.

1306900980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10516 (or 10505 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 1306900980 is about 36151.0854608821. The cubic root of 1306900980 is about 1093.3206759970.

The spelling of 1306900980 in words is "one billion, three hundred six million, nine hundred thousand, nine hundred eighty".