834243342438 has 48 divisors (see below), whose sum is σ = 1836459597168. Its totient is φ = 252455966400.

The previous prime is 834243342437. The next prime is 834243342473.

It is a happy number.

834243342438 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×834243342438² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (834243342437) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 251673 + ... + 1315988.

It is an arithmetic number, because the mean of its divisors is an integer number (38259574941).

Almost surely, 2^834243342438 is an apocalyptic number.

834243342438 is an abundant number, since it is smaller than the sum of its proper divisors (1002216254730).

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

834243342438 is a wasteful number, since it uses less digits than its factorization.

834243342438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1568421 (or 1568410 counting only the distinct ones).

The product of its digits is 5308416, while the sum is 48.

The spelling of 834243342438 in words is "eight hundred thirty-four billion, two hundred forty-three million, three hundred forty-two thousand, four hundred thirty-eight".