238534493660 has 24 divisors (see below), whose sum is σ = 505882069056. Its totient is φ = 94469105600.

The previous prime is 238534493647. The next prime is 238534493669. The reversal of 238534493660 is 66394435832.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238534493669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59041172 + ... + 59045211.

It is an arithmetic number, because the mean of its divisors is an integer number (21078419544).

Almost surely, 2^238534493660 is an apocalyptic number.

238534493660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

238534493660 is an abundant number, since it is smaller than the sum of its proper divisors (267347575396).

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

238534493660 is a wasteful number, since it uses less digits than its factorization.

238534493660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118086493 (or 118086491 counting only the distinct ones).

The product of its (nonzero) digits is 11197440, while the sum is 53.

The spelling of 238534493660 in words is "two hundred thirty-eight billion, five hundred thirty-four million, four hundred ninety-three thousand, six hundred sixty".