4490729136 has 120 divisors (see below), whose sum is σ = 12882072320. Its totient is φ = 1459928448.

The previous prime is 4490729077. The next prime is 4490729189. The reversal of 4490729136 is 6319270944.

It is a happy number.

4490729136 is a `hidden beast` number, since 4 + 490 + 7 + 29 + 136 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 4490729091 and 4490729100.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 991485 + ... + 996003.

Almost surely, 2^4490729136 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 4490729136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6441036160).

4490729136 is an abundant number, since it is smaller than the sum of its proper divisors (8391343184).

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

4490729136 is a wasteful number, since it uses less digits than its factorization.

4490729136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4703 (or 4694 counting only the distinct ones).

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

The square root of 4490729136 is about 67012.9027576033. The cubic root of 4490729136 is about 1649.8290776117.

The spelling of 4490729136 in words is "four billion, four hundred ninety million, seven hundred twenty-nine thousand, one hundred thirty-six".