1320060620 has 48 divisors (see below), whose sum is σ = 2896121088. Its totient is φ = 504461760.

The previous prime is 1320060619. The next prime is 1320060629. The reversal of 1320060620 is 260600231.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a zygodrome in base 7.

It is a junction number, because it is equal to n+sod(n) for n = 1320060592 and 1320060601.

It is not an unprimeable number, because it can be changed into a prime (1320060629) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 655415 + ... + 657425.

It is an arithmetic number, because the mean of its divisors is an integer number (60335856).

Almost surely, 2^1320060620 is an apocalyptic number.

1320060620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1320060620 is an abundant number, since it is smaller than the sum of its proper divisors (1576060468).

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

1320060620 is a wasteful number, since it uses less digits than its factorization.

1320060620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3470 (or 3468 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 1320060620 is about 36332.6384948850. The cubic root of 1320060620 is about 1096.9781026019.

Adding to 1320060620 its reverse (260600231), we get a palindrome (1580660851).

The spelling of 1320060620 in words is "one billion, three hundred twenty million, sixty thousand, six hundred twenty".