234851040221340 has 384 divisors, whose sum is σ = 700294133661696. Its totient is φ = 58708988928000.

The previous prime is 234851040221321. The next prime is 234851040221341. The reversal of 234851040221340 is 43122040158432.

It is a super-2 number, since 2×234851040221340² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234851040221341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 11984020422 + ... + 11984040018.

It is an arithmetic number, because the mean of its divisors is an integer number (1823682639744).

Almost surely, 2^{234851040221340} is an apocalyptic number.

234851040221340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 234851040221340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (350147066830848).

234851040221340 is an abundant number, since it is smaller than the sum of its proper divisors (465443093440356).

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

234851040221340 is a wasteful number, since it uses less digits than its factorization.

234851040221340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20789 (or 20787 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 39.

Adding to 234851040221340 its reverse (43122040158432), we get a palindrome (277973080379772).

The spelling of 234851040221340 in words is "two hundred thirty-four trillion, eight hundred fifty-one billion, forty million, two hundred twenty-one thousand, three hundred forty".