7620868220 has 48 divisors (see below), whose sum is σ = 18301140480. Its totient is φ = 2611289664.

The previous prime is 7620868193. The next prime is 7620868223. The reversal of 7620868220 is 228680267.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7620868223) 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, 229001 + ... + 260159.

It is an arithmetic number, because the mean of its divisors is an integer number (381273760).

Almost surely, 2^7620868220 is an apocalyptic number.

7620868220 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

7620868220 is an abundant number, since it is smaller than the sum of its proper divisors (10680272260).

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

7620868220 is a wasteful number, since it uses less digits than its factorization.

7620868220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32922 (or 32920 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 41.

The square root of 7620868220 is about 87297.5842735640. The cubic root of 7620868220 is about 1967.8930138675.

The spelling of 7620868220 in words is "seven billion, six hundred twenty million, eight hundred sixty-eight thousand, two hundred twenty".