1361197320 has 128 divisors (see below), whose sum is σ = 4680253440. Its totient is φ = 310245120.

The previous prime is 1361197309. The next prime is 1361197363. The reversal of 1361197320 is 237911631.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 319605 + ... + 323835.

It is an arithmetic number, because the mean of its divisors is an integer number (36564480).

Almost surely, 2^1361197320 is an apocalyptic number.

1361197320 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 1361197320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2340126720).

1361197320 is an abundant number, since it is smaller than the sum of its proper divisors (3319056120).

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

1361197320 is a wasteful number, since it uses less digits than its factorization.

1361197320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4635 (or 4631 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 33.

The square root of 1361197320 is about 36894.4077063178. The cubic root of 1361197320 is about 1108.2566904747.

The spelling of 1361197320 in words is "one billion, three hundred sixty-one million, one hundred ninety-seven thousand, three hundred twenty".