4722306640 has 80 divisors (see below), whose sum is σ = 11851920000. Its totient is φ = 1744472576.

The previous prime is 4722306629. The next prime is 4722306671. The reversal of 4722306640 is 466032274.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 4722306596 and 4722306605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9111 + ... + 97609.

It is an arithmetic number, because the mean of its divisors is an integer number (148149000).

Almost surely, 2^4722306640 is an apocalyptic number.

4722306640 is a gapful number since it is divisible by the number (40) 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 4722306640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5925960000).

4722306640 is an abundant number, since it is smaller than the sum of its proper divisors (7129613360).

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

4722306640 is a wasteful number, since it uses less digits than its factorization.

4722306640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88564 (or 88558 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 34.

The square root of 4722306640 is about 68719.0413204375. The cubic root of 4722306640 is about 1677.7145131507.

The spelling of 4722306640 in words is "four billion, seven hundred twenty-two million, three hundred six thousand, six hundred forty".