238175540 has 12 divisors (see below), whose sum is σ = 500168676. Its totient is φ = 95270208.

The previous prime is 238175533. The next prime is 238175543. The reversal of 238175540 is 45571832.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 135396496 + 102779044 = 11636^2 + 10138^2 .

It is a super-3 number, since 3×238175540³ (a number of 26 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 238175540.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238175543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5954369 + ... + 5954408.

It is an arithmetic number, because the mean of its divisors is an integer number (41680723).

Almost surely, 2^238175540 is an apocalyptic number.

238175540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

238175540 is an abundant number, since it is smaller than the sum of its proper divisors (261993136).

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

238175540 is a wasteful number, since it uses less digits than its factorization.

238175540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11908786 (or 11908784 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 35.

The square root of 238175540 is about 15432.9368559584. The cubic root of 238175540 is about 619.8677657636.

The spelling of 238175540 in words is "two hundred thirty-eight million, one hundred seventy-five thousand, five hundred forty".