4069221138 has 56 divisors (see below), whose sum is σ = 9446877696. Its totient is φ = 1312637400.

The previous prime is 4069221137. The next prime is 4069221151. The reversal of 4069221138 is 8311229604.

4069221138 is a `hidden beast` number, since 406 + 9 + 2 + 211 + 38 = 666.

It is not an unprimeable number, because it can be changed into a prime (4069221137) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 183 + ... + 90213.

Almost surely, 2^4069221138 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4069221138, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4723438848).

4069221138 is an abundant number, since it is smaller than the sum of its proper divisors (5377656558).

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

4069221138 is an equidigital number, since it uses as much as digits as its factorization.

4069221138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90082 (or 90067 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 4069221138 is about 63790.4470747776. The cubic root of 4069221138 is about 1596.5055425461.

The spelling of 4069221138 in words is "four billion, sixty-nine million, two hundred twenty-one thousand, one hundred thirty-eight".