238228992 has 160 divisors (see below), whose sum is σ = 743107200. Its totient is φ = 75147264.

The previous prime is 238228957. The next prime is 238228999. The reversal of 238228992 is 299822832.

238228992 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238228999) 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, 262203 + ... + 263109.

It is an arithmetic number, because the mean of its divisors is an integer number (4644420).

Almost surely, 2^238228992 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 238228992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (371553600).

238228992 is an abundant number, since it is smaller than the sum of its proper divisors (504878208).

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

238228992 is an equidigital number, since it uses as much as digits as its factorization.

238228992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 953 (or 931 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 238228992 is about 15434.6685095599. The cubic root of 238228992 is about 619.9141330963.

The spelling of 238228992 in words is "two hundred thirty-eight million, two hundred twenty-eight thousand, nine hundred ninety-two".