2220066738 has 32 divisors (see below), whose sum is σ = 4981392000. Its totient is φ = 732835728.

The previous prime is 2220066733. The next prime is 2220066749. The reversal of 2220066738 is 8376600222.

It is not an unprimeable number, because it can be changed into a prime (2220066733) 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, 194013 + ... + 205136.

It is an arithmetic number, because the mean of its divisors is an integer number (155668500).

Almost surely, 2^2220066738 is an apocalyptic number.

2220066738 is an abundant number, since it is smaller than the sum of its proper divisors (2761325262).

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

2220066738 is a wasteful number, since it uses less digits than its factorization.

2220066738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399263 (or 399257 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 2220066738 is about 47117.5841698192. The cubic root of 2220066738 is about 1304.5338221276.

The spelling of 2220066738 in words is "two billion, two hundred twenty million, sixty-six thousand, seven hundred thirty-eight".