238785672 has 96 divisors (see below), whose sum is σ = 641016000. Its totient is φ = 74105856.

The previous prime is 238785671. The next prime is 238785683. The reversal of 238785672 is 276587832.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238785671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1199829 + ... + 1200027.

It is an arithmetic number, because the mean of its divisors is an integer number (6677250).

Almost surely, 2^238785672 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 238785672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (320508000).

238785672 is an abundant number, since it is smaller than the sum of its proper divisors (402230328).

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

238785672 is a wasteful number, since it uses less digits than its factorization.

238785672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415 (or 394 counting only the distinct ones).

The product of its digits is 1128960, while the sum is 48.

The square root of 238785672 is about 15452.6914160608. The cubic root of 238785672 is about 620.3966175420.

The spelling of 238785672 in words is "two hundred thirty-eight million, seven hundred eighty-five thousand, six hundred seventy-two".