4391640792 has 576 divisors, whose sum is σ = 16253153280. Its totient is φ = 1045440000.

The previous prime is 4391640739. The next prime is 4391640793. The reversal of 4391640792 is 2970461934.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4391640793) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 43481542 + ... + 43481642.

It is an arithmetic number, because the mean of its divisors is an integer number (28217280).

Almost surely, 2^4391640792 is an apocalyptic number.

4391640792 is a gapful number since it is divisible by the number (42) 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 4391640792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8126576640).

4391640792 is an abundant number, since it is smaller than the sum of its proper divisors (11861512488).

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

4391640792 is a wasteful number, since it uses less digits than its factorization.

4391640792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196 (or 178 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The square root of 4391640792 is about 66269.4559506867. The cubic root of 4391640792 is about 1637.6041747294.

The spelling of 4391640792 in words is "four billion, three hundred ninety-one million, six hundred forty thousand, seven hundred ninety-two".