238234573440 has 1024 divisors, whose sum is σ = 930631680000. Its totient is φ = 57370705920.

The previous prime is 238234573397. The next prime is 238234573481. The reversal of 238234573440 is 44375432832.

238234573440 is a `hidden beast` number, since 2 + 3 + 8 + 2 + 34 + 573 + 4 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 905834749 + ... + 905835011.

It is an arithmetic number, because the mean of its divisors is an integer number (908820000).

Almost surely, 2^238234573440 is an apocalyptic number.

238234573440 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 238234573440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (465315840000).

238234573440 is an abundant number, since it is smaller than the sum of its proper divisors (692397106560).

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

238234573440 is a wasteful number, since it uses less digits than its factorization.

238234573440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430 (or 412 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 45.

The spelling of 238234573440 in words is "two hundred thirty-eight billion, two hundred thirty-four million, five hundred seventy-three thousand, four hundred forty".