238672685 has 16 divisors (see below), whose sum is σ = 294159600. Its totient is φ = 185794560.

The previous prime is 238672669. The next prime is 238672691. The reversal of 238672685 is 586276832.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 14002564 + 224670121 = 3742^2 + 14989^2 .

It is not a de Polignac number, because 238672685 - 2⁴ = 238672669 is a prime.

It is a Curzon 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, 90749 + ... + 93341.

It is an arithmetic number, because the mean of its divisors is an integer number (18384975).

Almost surely, 2^238672685 is an apocalyptic number.

It is an amenable number.

238672685 is a deficient number, since it is larger than the sum of its proper divisors (55486915).

238672685 is a wasteful number, since it uses less digits than its factorization.

238672685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3088.

The product of its digits is 967680, while the sum is 47.

The square root of 238672685 is about 15449.0350831371. The cubic root of 238672685 is about 620.2987504032.

The spelling of 238672685 in words is "two hundred thirty-eight million, six hundred seventy-two thousand, six hundred eighty-five".