123456834 has 24 divisors (see below), whose sum is σ = 267696000. Its totient is φ = 41120568.

The previous prime is 123456821. The next prime is 123456841. The reversal of 123456834 is 438654321.

123456834 is a `hidden beast` number, since 123 + 456 + 83 + 4 = 666.

It is a super-2 number, since 2×123456834² = 30483179722607112, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39667 + ... + 42665.

It is an arithmetic number, because the mean of its divisors is an integer number (11154000).

Almost surely, 2^123456834 is an apocalyptic number.

123456834 is an abundant number, since it is smaller than the sum of its proper divisors (144239166).

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

123456834 is a wasteful number, since it uses less digits than its factorization.

123456834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5294 (or 5291 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 123456834 is about 11111.1130855554. The cubic root of 123456834 is about 497.9339197171.

The spelling of 123456834 in words is "one hundred twenty-three million, four hundred fifty-six thousand, eight hundred thirty-four".