8090629638 has 64 divisors (see below), whose sum is σ = 20781315072. Its totient is φ = 2041015680.

The previous prime is 8090629637. The next prime is 8090629669. The reversal of 8090629638 is 8369260908.

It is a super-2 number, since 2×8090629638² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8090629633) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 309573 + ... + 334688.

It is an arithmetic number, because the mean of its divisors is an integer number (324708048).

Almost surely, 2^8090629638 is an apocalyptic number.

8090629638 is an abundant number, since it is smaller than the sum of its proper divisors (12690685434).

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

8090629638 is a wasteful number, since it uses less digits than its factorization.

8090629638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644309.

The product of its (nonzero) digits is 1119744, while the sum is 51.

The square root of 8090629638 is about 89947.9273691173. The cubic root of 8090629638 is about 2007.5241280850.

The spelling of 8090629638 in words is "eight billion, ninety million, six hundred twenty-nine thousand, six hundred thirty-eight".