238984399 has 4 divisors (see below), whose sum is σ = 239037120. Its totient is φ = 238931680.

The previous prime is 238984349. The next prime is 238984433. The reversal of 238984399 is 993489832.

It is a happy number.

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 238984399 - 2⁷ = 238984271 is a prime.

It is a super-2 number, since 2×238984399² = 114227085930782402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238984349) 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, 18847 + ... + 28864.

It is an arithmetic number, because the mean of its divisors is an integer number (59759280).

Almost surely, 2^238984399 is an apocalyptic number.

238984399 is a deficient number, since it is larger than the sum of its proper divisors (52721).

238984399 is an equidigital number, since it uses as much as digits as its factorization.

238984399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52720.

The product of its digits is 3359232, while the sum is 55.

The square root of 238984399 is about 15459.1202531063. The cubic root of 238984399 is about 620.5686761238.

The spelling of 238984399 in words is "two hundred thirty-eight million, nine hundred eighty-four thousand, three hundred ninety-nine".