238012274073840 has 320 divisors, whose sum is σ = 887653776522240. Its totient is φ = 51537812889600.

The previous prime is 238012274073811. The next prime is 238012274073841. The reversal of 238012274073840 is 48370472210832.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238012274073841) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1142663782 + ... + 1142872058.

It is an arithmetic number, because the mean of its divisors is an integer number (2773918051632).

Almost surely, 2^{238012274073840} is an apocalyptic number.

238012274073840 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 238012274073840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (443826888261120).

238012274073840 is an abundant number, since it is smaller than the sum of its proper divisors (649641502448400).

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

238012274073840 is a wasteful number, since it uses less digits than its factorization.

238012274073840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244120 (or 244114 counting only the distinct ones).

The product of its (nonzero) digits is 3612672, while the sum is 51.

The spelling of 238012274073840 in words is "two hundred thirty-eight trillion, twelve billion, two hundred seventy-four million, seventy-three thousand, eight hundred forty".