238946445918 has 24 divisors (see below), whose sum is σ = 517744640088. Its totient is φ = 79644609072.

The previous prime is 238946445883. The next prime is 238946445919. The reversal of 238946445918 is 819544649832.

238946445918 is a `hidden beast` number, since 2 + 3 + 89 + 464 + 4 + 5 + 91 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238946445919) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9805 + ... + 691367.

It is an arithmetic number, because the mean of its divisors is an integer number (21572693337).

Almost surely, 2^238946445918 is an apocalyptic number.

238946445918 is an abundant number, since it is smaller than the sum of its proper divisors (278798194170).

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

238946445918 is a wasteful number, since it uses less digits than its factorization.

238946445918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 701048 (or 701045 counting only the distinct ones).

The product of its digits is 59719680, while the sum is 63.

The spelling of 238946445918 in words is "two hundred thirty-eight billion, nine hundred forty-six million, four hundred forty-five thousand, nine hundred eighteen".