4636243440 has 160 divisors (see below), whose sum is σ = 16484659200. Its totient is φ = 1196432640.

The previous prime is 4636243429. The next prime is 4636243453. The reversal of 4636243440 is 443426364.

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 = 4636243395 and 4636243404.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32341 + ... + 101579.

It is an arithmetic number, because the mean of its divisors is an integer number (103029120).

Almost surely, 2^4636243440 is an apocalyptic number.

4636243440 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 4636243440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8242329600).

4636243440 is an abundant number, since it is smaller than the sum of its proper divisors (11848415760).

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

4636243440 is a wasteful number, since it uses less digits than its factorization.

4636243440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69292 (or 69280 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 36.

The square root of 4636243440 is about 68089.9657805759. The cubic root of 4636243440 is about 1667.4599462757.

The spelling of 4636243440 in words is "four billion, six hundred thirty-six million, two hundred forty-three thousand, four hundred forty".