1320270204 has 72 divisors (see below), whose sum is σ = 3393293904. Its totient is φ = 399238400.

The previous prime is 1320270187. The next prime is 1320270209. The reversal of 1320270204 is 4020720231.

It is a super-2 number, since 2×1320270204² = 3486226823140403232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320270209) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1243834 + ... + 1244894.

It is an arithmetic number, because the mean of its divisors is an integer number (47129082).

Almost surely, 2^1320270204 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1320270204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1696646952).

1320270204 is an abundant number, since it is smaller than the sum of its proper divisors (2073023700).

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

1320270204 is a wasteful number, since it uses less digits than its factorization.

1320270204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1947 (or 1934 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 1320270204 is about 36335.5226190570. The cubic root of 1320270204 is about 1097.0361547066.

Adding to 1320270204 its reverse (4020720231), we get a palindrome (5340990435).

The spelling of 1320270204 in words is "one billion, three hundred twenty million, two hundred seventy thousand, two hundred four".