238121072 has 80 divisors (see below), whose sum is σ = 559488000. Its totient is φ = 95904000.

The previous prime is 238121041. The next prime is 238121087. The reversal of 238121072 is 270121832.

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

It is a congruent number.

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, 316697 + ... + 317447.

It is an arithmetic number, because the mean of its divisors is an integer number (6993600).

Almost surely, 2^238121072 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 238121072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (279744000).

238121072 is an abundant number, since it is smaller than the sum of its proper divisors (321366928).

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

238121072 is a wasteful number, since it uses less digits than its factorization.

238121072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 934 (or 928 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 238121072 is about 15431.1720876931. The cubic root of 238121072 is about 619.8205099573.

The spelling of 238121072 in words is "two hundred thirty-eight million, one hundred twenty-one thousand, seventy-two".