238274387 has 4 divisors (see below), whose sum is σ = 256603200. Its totient is φ = 219945576.

The previous prime is 238274381. The next prime is 238274419. The reversal of 238274387 is 783472832.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 238274387 - 2⁸ = 238274131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (238274381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9164387 + ... + 9164412.

It is an arithmetic number, because the mean of its divisors is an integer number (64150800).

Almost surely, 2^238274387 is an apocalyptic number.

238274387 is a deficient number, since it is larger than the sum of its proper divisors (18328813).

238274387 is a wasteful number, since it uses less digits than its factorization.

238274387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18328812.

The product of its digits is 451584, while the sum is 44.

The square root of 238274387 is about 15436.1389926367. The cubic root of 238274387 is about 619.9535058787.

It can be divided in two parts, 238 and 274387, that added together give a cube (274625 = 65³).

The spelling of 238274387 in words is "two hundred thirty-eight million, two hundred seventy-four thousand, three hundred eighty-seven".