238573624140 has 144 divisors (see below), whose sum is σ = 726016505760. Its totient is φ = 63414005760.

The previous prime is 238573624139. The next prime is 238573624153. The reversal of 238573624140 is 41426375832.

238573624140 is a `hidden beast` number, since 2 + 3 + 8 + 5 + 7 + 3 + 624 + 14 + 0 = 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 47 ways as a sum of consecutive naturals, for example, 118280412 + ... + 118282428.

It is an arithmetic number, because the mean of its divisors is an integer number (5041781290).

Almost surely, 2^238573624140 is an apocalyptic number.

238573624140 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 238573624140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (363008252880).

238573624140 is an abundant number, since it is smaller than the sum of its proper divisors (487442881620).

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

238573624140 is a wasteful number, since it uses less digits than its factorization.

238573624140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3832 (or 3827 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 45.

Adding to 238573624140 its reverse (41426375832), we get a palindrome (279999999972).

The spelling of 238573624140 in words is "two hundred thirty-eight billion, five hundred seventy-three million, six hundred twenty-four thousand, one hundred forty".