239385085440 has 160 divisors (see below), whose sum is σ = 768339323136. Its totient is φ = 63581184000.

The previous prime is 239385085417. The next prime is 239385085469. The reversal of 239385085440 is 44580583932.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (160).

It is a super-3 number, since 3×239385085440³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1865589 + ... + 1989771.

Almost surely, 2^239385085440 is an apocalyptic number.

239385085440 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 239385085440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (384169661568).

239385085440 is an abundant number, since it is smaller than the sum of its proper divisors (528954237696).

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

239385085440 is a wasteful number, since it uses less digits than its factorization.

239385085440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124460 (or 124444 counting only the distinct ones).

The product of its (nonzero) digits is 4147200, while the sum is 51.

The spelling of 239385085440 in words is "two hundred thirty-nine billion, three hundred eighty-five million, eighty-five thousand, four hundred forty".