4436000640 has 160 divisors (see below), whose sum is σ = 15841944360. Its totient is φ = 1182919680.

The previous prime is 4436000579. The next prime is 4436000641. The reversal of 4436000640 is 460006344.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (160).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4436000641) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 9055 + ... + 94625.

Almost surely, 2^4436000640 is an apocalyptic number.

4436000640 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 4436000640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7920972180).

4436000640 is an abundant number, since it is smaller than the sum of its proper divisors (11405943720).

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

4436000640 is an equidigital number, since it uses as much as digits as its factorization.

4436000640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85602 (or 85581 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 4436000640 is about 66603.3080259532. The cubic root of 4436000640 is about 1643.0995121830.

Adding to 4436000640 its reverse (460006344), we get a palindrome (4896006984).

The spelling of 4436000640 in words is "four billion, four hundred thirty-six million, six hundred forty", and thus it is an aban number.