4722238664 has 128 divisors (see below), whose sum is σ = 11054534400. Its totient is φ = 1860848640.

The previous prime is 4722238589. The next prime is 4722238669. The reversal of 4722238664 is 4668322274.

Together with 6332295735 it forms a betrothed pair.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is not an unprimeable number, because it can be changed into a prime (4722238669) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1225589 + ... + 1229435.

It is an arithmetic number, because the mean of its divisors is an integer number (86363550).

Almost surely, 2^4722238664 is an apocalyptic number.

4722238664 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4722238664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5527267200).

4722238664 is an abundant number, since it is smaller than the sum of its proper divisors (6332295736).

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

4722238664 is a wasteful number, since it uses less digits than its factorization.

4722238664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3943 (or 3939 counting only the distinct ones).

The product of its digits is 774144, while the sum is 44.

The square root of 4722238664 is about 68718.5467250290. The cubic root of 4722238664 is about 1677.7064630685.

The spelling of 4722238664 in words is "four billion, seven hundred twenty-two million, two hundred thirty-eight thousand, six hundred sixty-four".