238109856 has 24 divisors (see below), whose sum is σ = 625038624. Its totient is φ = 79369920.

The previous prime is 238109831. The next prime is 238109857. The reversal of 238109856 is 658901832.

238109856 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (24).

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (238109857) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1240060 + ... + 1240251.

It is an arithmetic number, because the mean of its divisors is an integer number (26043276).

Almost surely, 2^238109856 is an apocalyptic number.

It is an amenable number.

238109856 is an abundant number, since it is smaller than the sum of its proper divisors (386928768).

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

238109856 is a wasteful number, since it uses less digits than its factorization.

238109856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2480324 (or 2480316 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 42.

The square root of 238109856 is about 15430.8086631907. The cubic root of 238109856 is about 619.8107781908.

The spelling of 238109856 in words is "two hundred thirty-eight million, one hundred nine thousand, eight hundred fifty-six".