4062644640 has 192 divisors, whose sum is σ = 14289851520. Its totient is φ = 1077995520.

The previous prime is 4062644639. The next prime is 4062644689. The reversal of 4062644640 is 464462604.

It is a happy number.

4062644640 is a `hidden beast` number, since 4 + 0 + 6 + 2 + 6 + 4 + 4 + 640 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 4062644595 and 4062644604.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 909292 + ... + 913748.

It is an arithmetic number, because the mean of its divisors is an integer number (74426310).

Almost surely, 2^4062644640 is an apocalyptic number.

4062644640 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 4062644640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7144925760).

4062644640 is an abundant number, since it is smaller than the sum of its proper divisors (10227206880).

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

4062644640 is a wasteful number, since it uses less digits than its factorization.

4062644640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4692 (or 4678 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 36.

The square root of 4062644640 is about 63738.8785593220. The cubic root of 4062644640 is about 1595.6450112168.

The spelling of 4062644640 in words is "four billion, sixty-two million, six hundred forty-four thousand, six hundred forty".