238343784 has 64 divisors (see below), whose sum is σ = 687398400. Its totient is φ = 67456704.

The previous prime is 238343767. The next prime is 238343803. The reversal of 238343784 is 487343832.

238343784 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 (42).

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11347 + ... + 24605.

It is an arithmetic number, because the mean of its divisors is an integer number (10740600).

Almost surely, 2^238343784 is an apocalyptic number.

238343784 is a gapful number since it is divisible by the number (24) 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 238343784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (343699200).

238343784 is an abundant number, since it is smaller than the sum of its proper divisors (449054616).

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

238343784 is a wasteful number, since it uses less digits than its factorization.

238343784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13382 (or 13378 counting only the distinct ones).

The product of its digits is 387072, while the sum is 42.

The square root of 238343784 is about 15438.3867032796. The cubic root of 238343784 is about 620.0136868293.

The spelling of 238343784 in words is "two hundred thirty-eight million, three hundred forty-three thousand, seven hundred eighty-four".