238409072 has 40 divisors (see below), whose sum is σ = 505420032. Its totient is φ = 108043200.

The previous prime is 238409063. The next prime is 238409081. The reversal of 238409072 is 270904832.

It is an interprime number because it is at equal distance from previous prime (238409063) and next prime (238409081).

It is a super-2 number, since 2×238409072² = 113677771223802368, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62747 + ... + 66437.

Almost surely, 2^238409072 is an apocalyptic number.

238409072 is a gapful number since it is divisible by the number (22) 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 238409072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (252710016).

238409072 is an abundant number, since it is smaller than the sum of its proper divisors (267010960).

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

238409072 is a wasteful number, since it uses less digits than its factorization.

238409072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4077 (or 4071 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 238409072 is about 15440.5010281402. The cubic root of 238409072 is about 620.0702937990.

The spelling of 238409072 in words is "two hundred thirty-eight million, four hundred nine thousand, seventy-two".