1371836980 has 12 divisors (see below), whose sum is σ = 2880857700. Its totient is φ = 548734784.

The previous prime is 1371836969. The next prime is 1371836989. The reversal of 1371836980 is 896381731.

It can be written as a sum of positive squares in 2 ways, for example, as 251729956 + 1120107024 = 15866^2 + 33468^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1371836980.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1371836989) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34295905 + ... + 34295944.

It is an arithmetic number, because the mean of its divisors is an integer number (240071475).

Almost surely, 2^1371836980 is an apocalyptic number.

1371836980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1371836980 is an abundant number, since it is smaller than the sum of its proper divisors (1509020720).

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

1371836980 is a wasteful number, since it uses less digits than its factorization.

1371836980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68591858 (or 68591856 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 46.

The square root of 1371836980 is about 37038.3177263763. The cubic root of 1371836980 is about 1111.1367247503.

The spelling of 1371836980 in words is "one billion, three hundred seventy-one million, eight hundred thirty-six thousand, nine hundred eighty".