6638290092 has 144 divisors (see below), whose sum is σ = 20073402720. Its totient is φ = 1891620864.

The previous prime is 6638290079. The next prime is 6638290103. The reversal of 6638290092 is 2900928366.

6638290092 is a `hidden beast` number, since 6 + 638 + 2 + 9 + 0 + 0 + 9 + 2 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2289988 + ... + 2292884.

It is an arithmetic number, because the mean of its divisors is an integer number (139398630).

Almost surely, 2^6638290092 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 6638290092, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10036701360).

6638290092 is an abundant number, since it is smaller than the sum of its proper divisors (13435112628).

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

6638290092 is a wasteful number, since it uses less digits than its factorization.

6638290092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3357 (or 3342 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The square root of 6638290092 is about 81475.7024639862. The cubic root of 6638290092 is about 1879.3979221113.

The spelling of 6638290092 in words is "six billion, six hundred thirty-eight million, two hundred ninety thousand, ninety-two".