4900490638 has 8 divisors (see below), whose sum is σ = 7352600832. Its totient is φ = 2449623696.

The previous prime is 4900490627. The next prime is 4900490663. The reversal of 4900490638 is 8360940094.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 4900490594 and 4900490603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 300895 + ... + 316762.

It is an arithmetic number, because the mean of its divisors is an integer number (919075104).

Almost surely, 2^4900490638 is an apocalyptic number.

4900490638 is a deficient number, since it is larger than the sum of its proper divisors (2452110194).

4900490638 is a wasteful number, since it uses less digits than its factorization.

4900490638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 621626.

The product of its (nonzero) digits is 186624, while the sum is 43.

The square root of 4900490638 is about 70003.5044694192. The cubic root of 4900490638 is about 1698.5559407087. Note that the first 3 decimals are identical.

The spelling of 4900490638 in words is "four billion, nine hundred million, four hundred ninety thousand, six hundred thirty-eight".