238172280 has 64 divisors (see below), whose sum is σ = 731959200. Its totient is φ = 61962240.

The previous prime is 238172267. The next prime is 238172323. The reversal of 238172280 is 82271832.

It is a super-3 number, since 3×238172280³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 19285 + ... + 29124.

Almost surely, 2^238172280 is an apocalyptic number.

238172280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

238172280 is an abundant number, since it is smaller than the sum of its proper divisors (493786920).

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

238172280 is a wasteful number, since it uses less digits than its factorization.

238172280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48464 (or 48460 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 238172280 is about 15432.8312373330. The cubic root of 238172280 is about 619.8649376280.

The spelling of 238172280 in words is "two hundred thirty-eight million, one hundred seventy-two thousand, two hundred eighty".