2207640220 has 24 divisors (see below), whose sum is σ = 4678581600. Its totient is φ = 874953792.

The previous prime is 2207640209. The next prime is 2207640233. The reversal of 2207640220 is 220467022.

2207640220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 504160 + ... + 508519.

It is an arithmetic number, because the mean of its divisors is an integer number (194940900).

Almost surely, 2^2207640220 is an apocalyptic number.

2207640220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2207640220 is an abundant number, since it is smaller than the sum of its proper divisors (2470941380).

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

2207640220 is a wasteful number, since it uses less digits than its factorization.

2207640220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1012797 (or 1012795 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 2207640220 is about 46985.5320284872. The cubic root of 2207640220 is about 1302.0952838196.

The spelling of 2207640220 in words is "two billion, two hundred seven million, six hundred forty thousand, two hundred twenty".