238243356 has 180 divisors, whose sum is σ = 713004600. Its totient is φ = 69144192.

The previous prime is 238243351. The next prime is 238243363. The reversal of 238243356 is 653342832.

It is a happy number.

238243356 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 238243356.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238243351) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 1040250 + ... + 1040478.

Almost surely, 2^238243356 is an apocalyptic number.

238243356 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 238243356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (356502300).

238243356 is an abundant number, since it is smaller than the sum of its proper divisors (474761244).

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

238243356 is a wasteful number, since it uses less digits than its factorization.

238243356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290 (or 266 counting only the distinct ones).

The product of its digits is 103680, while the sum is 36.

The square root of 238243356 is about 15435.1338186619. The cubic root of 238243356 is about 619.9265920719.

The spelling of 238243356 in words is "two hundred thirty-eight million, two hundred forty-three thousand, three hundred fifty-six".