238681956 has 24 divisors (see below), whose sum is σ = 557270784. Its totient is φ = 79511200.

The previous prime is 238681897. The next prime is 238681957. The reversal of 238681956 is 659186832.

It is a happy number.

238681956 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×238681956² = 113938152239971872, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (238681957) 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, 17581 + ... + 28043.

It is an arithmetic number, because the mean of its divisors is an integer number (23219616).

Almost surely, 2^238681956 is an apocalyptic number.

It is an amenable number.

238681956 is an abundant number, since it is smaller than the sum of its proper divisors (318588828).

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

238681956 is a wasteful number, since it uses less digits than its factorization.

238681956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12371 (or 12369 counting only the distinct ones).

The product of its digits is 622080, while the sum is 48.

The square root of 238681956 is about 15449.3351313252. The cubic root of 238681956 is about 620.3067819259.

The spelling of 238681956 in words is "two hundred thirty-eight million, six hundred eighty-one thousand, nine hundred fifty-six".