238485478 has 64 divisors (see below), whose sum is σ = 462827520. Its totient is φ = 89481600.

The previous prime is 238485451. The next prime is 238485491. The reversal of 238485478 is 874584832.

It is a super-3 number, since 3×238485478³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 497643 + ... + 498121.

It is an arithmetic number, because the mean of its divisors is an integer number (7231680).

Almost surely, 2^238485478 is an apocalyptic number.

238485478 is a deficient number, since it is larger than the sum of its proper divisors (224342042).

238485478 is a wasteful number, since it uses less digits than its factorization.

238485478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 613.

The product of its digits is 1720320, while the sum is 49.

The square root of 238485478 is about 15442.9750372135. The cubic root of 238485478 is about 620.1365273392.

The spelling of 238485478 in words is "two hundred thirty-eight million, four hundred eighty-five thousand, four hundred seventy-eight".