238945146 has 32 divisors (see below), whose sum is σ = 522021888. Its totient is φ = 72312240.

The previous prime is 238945141. The next prime is 238945207. The reversal of 238945146 is 641549832.

238945146 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×238945146² = 114189565593922632, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 238945098 and 238945107.

It is not an unprimeable number, because it can be changed into a prime (238945141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60591 + ... + 64413.

It is an arithmetic number, because the mean of its divisors is an integer number (16313184).

Almost surely, 2^238945146 is an apocalyptic number.

238945146 is an abundant number, since it is smaller than the sum of its proper divisors (283076742).

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

238945146 is a wasteful number, since it uses less digits than its factorization.

238945146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4786.

The product of its digits is 207360, while the sum is 42.

The square root of 238945146 is about 15457.8506267851. The cubic root of 238945146 is about 620.5346982908.

The spelling of 238945146 in words is "two hundred thirty-eight million, nine hundred forty-five thousand, one hundred forty-six".