238278485 has 16 divisors (see below), whose sum is σ = 296151552. Its totient is φ = 183926400.

The previous prime is 238278461. The next prime is 238278499. The reversal of 238278485 is 584872832.

It is a de Polignac number, because none of the positive numbers 2^k-238278485 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9545 + ... + 23825.

It is an arithmetic number, because the mean of its divisors is an integer number (18509472).

Almost surely, 2^238278485 is an apocalyptic number.

It is an amenable number.

238278485 is a deficient number, since it is larger than the sum of its proper divisors (57873067).

238278485 is a wasteful number, since it uses less digits than its factorization.

238278485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14404.

The product of its digits is 860160, while the sum is 47.

The square root of 238278485 is about 15436.2717325137. The cubic root of 238278485 is about 619.9570599814.

The spelling of 238278485 in words is "two hundred thirty-eight million, two hundred seventy-eight thousand, four hundred eighty-five".