4639243140 has 192 divisors, whose sum is σ = 16607808000. Its totient is φ = 1053153792.

The previous prime is 4639243127. The next prime is 4639243199. The reversal of 4639243140 is 413429364.

It is a happy number.

4639243140 is a `hidden beast` number, since 4 + 639 + 2 + 4 + 3 + 14 + 0 = 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 = 4639243095 and 4639243104.

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 63 ways as a sum of consecutive naturals, for example, 559102 + ... + 567338.

It is an arithmetic number, because the mean of its divisors is an integer number (86499000).

Almost surely, 2^4639243140 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4639243140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8303904000).

4639243140 is an abundant number, since it is smaller than the sum of its proper divisors (11968564860).

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

4639243140 is a wasteful number, since it uses less digits than its factorization.

4639243140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8411 (or 8403 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The square root of 4639243140 is about 68111.9896934453. The cubic root of 4639243140 is about 1667.8194903258.

The spelling of 4639243140 in words is "four billion, six hundred thirty-nine million, two hundred forty-three thousand, one hundred forty".