834018138 has 24 divisors (see below), whose sum is σ = 1831796148. Its totient is φ = 274197312.

The previous prime is 834018131. The next prime is 834018179. The reversal of 834018138 is 831810438.

It can be written as a sum of positive squares in 2 ways, for example, as 815844969 + 18173169 = 28563^2 + 4263^2 .

It is not an unprimeable number, because it can be changed into a prime (834018131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 316045 + ... + 318672.

Almost surely, 2^834018138 is an apocalyptic number.

834018138 is an abundant number, since it is smaller than the sum of its proper divisors (997778010).

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

834018138 is a wasteful number, since it uses less digits than its factorization.

834018138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634798 (or 634795 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 834018138 is about 28879.3721884670. The cubic root of 834018138 is about 941.2937286499.

The spelling of 834018138 in words is "eight hundred thirty-four million, eighteen thousand, one hundred thirty-eight".