238887413 has 4 divisors (see below), whose sum is σ = 247124940. Its totient is φ = 230649888.

The previous prime is 238887391. The next prime is 238887419. The reversal of 238887413 is 314788832.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 173633329 + 65254084 = 13177^2 + 8078^2 .

It is a cyclic number.

It is not a de Polignac number, because 238887413 - 2⁸ = 238887157 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 (238887419) 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, 4118720 + ... + 4118777.

It is an arithmetic number, because the mean of its divisors is an integer number (61781235).

Almost surely, 2^238887413 is an apocalyptic number.

It is an amenable number.

238887413 is a deficient number, since it is larger than the sum of its proper divisors (8237527).

238887413 is an equidigital number, since it uses as much as digits as its factorization.

238887413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8237526.

The product of its digits is 258048, while the sum is 44.

The square root of 238887413 is about 15455.9830809949. The cubic root of 238887413 is about 620.4847172023.

The spelling of 238887413 in words is "two hundred thirty-eight million, eight hundred eighty-seven thousand, four hundred thirteen".