238600421 has 4 divisors (see below), whose sum is σ = 244149312. Its totient is φ = 233051532.

The previous prime is 238600409. The next prime is 238600469. The reversal of 238600421 is 124006832.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-238600421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238600471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2774381 + ... + 2774466.

It is an arithmetic number, because the mean of its divisors is an integer number (61037328).

Almost surely, 2^238600421 is an apocalyptic number.

It is an amenable number.

238600421 is a deficient number, since it is larger than the sum of its proper divisors (5548891).

238600421 is an equidigital number, since it uses as much as digits as its factorization.

238600421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5548890.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 238600421 is about 15446.6961192353. The cubic root of 238600421 is about 620.2361405384.

The spelling of 238600421 in words is "two hundred thirty-eight million, six hundred thousand, four hundred twenty-one".