834638530 has 16 divisors (see below), whose sum is σ = 1638926784. Its totient is φ = 303504880.

The previous prime is 834638509. The next prime is 834638543. The reversal of 834638530 is 35836438.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3793702 + ... + 3793921.

It is an arithmetic number, because the mean of its divisors is an integer number (102432924).

Almost surely, 2^834638530 is an apocalyptic number.

834638530 is a deficient number, since it is larger than the sum of its proper divisors (804288254).

834638530 is a wasteful number, since it uses less digits than its factorization.

834638530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7587641.

The product of its (nonzero) digits is 207360, while the sum is 40.

The square root of 834638530 is about 28890.1112839670. Note that the first 3 decimals coincide. The cubic root of 834638530 is about 941.5270674447.

The spelling of 834638530 in words is "eight hundred thirty-four million, six hundred thirty-eight thousand, five hundred thirty".