1320220626 has 32 divisors (see below), whose sum is σ = 2667921408. Its totient is φ = 435511440.

The previous prime is 1320220613. The next prime is 1320220637. The reversal of 1320220626 is 6260220231.

It is a junction number, because it is equal to n+sod(n) for n = 1320220596 and 1320220605.

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, 335611 + ... + 339521.

It is an arithmetic number, because the mean of its divisors is an integer number (83372544).

Almost surely, 2^1320220626 is an apocalyptic number.

1320220626 is an abundant number, since it is smaller than the sum of its proper divisors (1347700782).

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

1320220626 is a wasteful number, since it uses less digits than its factorization.

1320220626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4486.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 1320220626 is about 36334.8403877050. The cubic root of 1320220626 is about 1097.0224227854.

Adding to 1320220626 its reverse (6260220231), we get a palindrome (7580440857).

The spelling of 1320220626 in words is "one billion, three hundred twenty million, two hundred twenty thousand, six hundred twenty-six".