7260818220 has 72 divisors (see below), whose sum is σ = 22032672480. Its totient is φ = 1935498240.

The previous prime is 7260818209. The next prime is 7260818231. The reversal of 7260818220 is 228180627.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (7260818209) and next prime (7260818231).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 626236 + ... + 637724.

It is an arithmetic number, because the mean of its divisors is an integer number (306009340).

Almost surely, 2^7260818220 is an apocalyptic number.

It is an amenable number.

7260818220 is an abundant number, since it is smaller than the sum of its proper divisors (14771854260).

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

7260818220 is a wasteful number, since it uses less digits than its factorization.

7260818220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15015 (or 15010 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 7260818220 is about 85210.4349243683. The cubic root of 7260818220 is about 1936.4005084441.

Adding to 7260818220 its reverse (228180627), we get a palindrome (7488998847).

The spelling of 7260818220 in words is "seven billion, two hundred sixty million, eight hundred eighteen thousand, two hundred twenty".