238657342 has 32 divisors (see below), whose sum is σ = 455443200. Its totient is φ = 92980440.

The previous prime is 238657337. The next prime is 238657343. The reversal of 238657342 is 243756832.

It is a junction number, because it is equal to n+sod(n) for n = 238657295 and 238657304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238657343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8268 + ... + 23359.

It is an arithmetic number, because the mean of its divisors is an integer number (14232600).

Almost surely, 2^238657342 is an apocalyptic number.

238657342 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

238657342 is a deficient number, since it is larger than the sum of its proper divisors (216785858).

238657342 is a wasteful number, since it uses less digits than its factorization.

238657342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31661 (or 31647 counting only the distinct ones).

The product of its digits is 241920, while the sum is 40.

The square root of 238657342 is about 15448.5385069268. The cubic root of 238657342 is about 620.2854582137.

The spelling of 238657342 in words is "two hundred thirty-eight million, six hundred fifty-seven thousand, three hundred forty-two".