238400011 has 8 divisors (see below), whose sum is σ = 251092800. Its totient is φ = 225721800.

The previous prime is 238400009. The next prime is 238400023. The reversal of 238400011 is 110004832.

238400011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 238400011 - 2¹ = 238400009 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (238400111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51336 + ... + 55786.

It is an arithmetic number, because the mean of its divisors is an integer number (31386600).

Almost surely, 2^238400011 is an apocalyptic number.

238400011 is a deficient number, since it is larger than the sum of its proper divisors (12692789).

238400011 is a wasteful number, since it uses less digits than its factorization.

238400011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7289.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 238400011 is about 15440.2076087079. The cubic root of 238400011 is about 620.0624382141.

Adding to 238400011 its reverse (110004832), we get a palindrome (348404843).

The spelling of 238400011 in words is "two hundred thirty-eight million, four hundred thousand, eleven".