238474656 has 144 divisors (see below), whose sum is σ = 801964800. Its totient is φ = 65769984.

The previous prime is 238474633. The next prime is 238474673. The reversal of 238474656 is 656474832.

238474656 is digitally balanced in base 2, 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 (144).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 56425 + ... + 60503.

It is an arithmetic number, because the mean of its divisors is an integer number (5569200).

Almost surely, 2^238474656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 238474656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (400982400).

238474656 is an abundant number, since it is smaller than the sum of its proper divisors (563490144).

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

238474656 is a wasteful number, since it uses less digits than its factorization.

238474656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4131 (or 4120 counting only the distinct ones).

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

The square root of 238474656 is about 15442.6246473843. The cubic root of 238474656 is about 620.1271470070.

The spelling of 238474656 in words is "two hundred thirty-eight million, four hundred seventy-four thousand, six hundred fifty-six".