238745475 has 30 divisors (see below), whose sum is σ = 442242900. Its totient is φ = 127329840.

The previous prime is 238745473. The next prime is 238745489. The reversal of 238745475 is 574547832.

238745475 is a `hidden beast` number, since 2 + 38 + 74 + 547 + 5 = 666.

It is not a de Polignac number, because 238745475 - 2¹ = 238745473 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 238745475.

It is not an unprimeable number, because it can be changed into a prime (238745473) by changing a digit.

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 29 ways as a sum of consecutive naturals, for example, 56925 + ... + 60974.

It is an arithmetic number, because the mean of its divisors is an integer number (14741430).

Almost surely, 2^238745475 is an apocalyptic number.

238745475 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

238745475 is a deficient number, since it is larger than the sum of its proper divisors (203497425).

238745475 is a wasteful number, since it uses less digits than its factorization.

238745475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117921 (or 117907 counting only the distinct ones).

The product of its digits is 940800, while the sum is 45.

The square root of 238745475 is about 15451.3907141073. The cubic root of 238745475 is about 620.3618032221.

The spelling of 238745475 in words is "two hundred thirty-eight million, seven hundred forty-five thousand, four hundred seventy-five".