238813406 has 16 divisors (see below), whose sum is σ = 386061984. Its totient is φ = 110139744.

The previous prime is 238813403. The next prime is 238813411. The reversal of 238813406 is 604318832.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238813403) 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 7 ways as a sum of consecutive naturals, for example, 45536 + ... + 50508.

It is an arithmetic number, because the mean of its divisors is an integer number (24128874).

Almost surely, 2^238813406 is an apocalyptic number.

238813406 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

238813406 is a deficient number, since it is larger than the sum of its proper divisors (147248578).

238813406 is a wasteful number, since it uses less digits than its factorization.

238813406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6835.

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 238813406 is about 15453.5887741327. The cubic root of 238813406 is about 620.4206354734.

The spelling of 238813406 in words is "two hundred thirty-eight million, eight hundred thirteen thousand, four hundred six".