510861834 has 72 divisors (see below), whose sum is σ = 1307423520. Its totient is φ = 141218640.

The previous prime is 510861833. The next prime is 510861839. The reversal of 510861834 is 438168015.

510861834 is a `hidden beast` number, since 5 + 1 + 0 + 8 + 618 + 34 = 666.

It is not an unprimeable number, because it can be changed into a prime (510861833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 118977 + ... + 123195.

It is an arithmetic number, because the mean of its divisors is an integer number (18158660).

Almost surely, 2^510861834 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 510861834, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (653711760).

510861834 is an abundant number, since it is smaller than the sum of its proper divisors (796561686).

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

510861834 is a wasteful number, since it uses less digits than its factorization.

510861834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4296 (or 4262 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 510861834 is about 22602.2528523154. The cubic root of 510861834 is about 799.4067654080.

The spelling of 510861834 in words is "five hundred ten million, eight hundred sixty-one thousand, eight hundred thirty-four".