238678406 has 8 divisors (see below), whose sum is σ = 373583664. Its totient is φ = 114150520.

The previous prime is 238678403. The next prime is 238678409. The reversal of 238678406 is 604876832.

It is an interprime number because it is at equal distance from previous prime (238678403) and next prime (238678409).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238678403) 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, 2594285 + ... + 2594376.

It is an arithmetic number, because the mean of its divisors is an integer number (46697958).

Almost surely, 2^238678406 is an apocalyptic number.

238678406 is a deficient number, since it is larger than the sum of its proper divisors (134905258).

238678406 is a wasteful number, since it uses less digits than its factorization.

238678406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5188686.

The product of its (nonzero) digits is 387072, while the sum is 44.

The square root of 238678406 is about 15449.2202392224. The cubic root of 238678406 is about 620.3037065643.

It can be divided in two parts, 23867 and 8406, that multiplied together give a palindrome (200626002).

The spelling of 238678406 in words is "two hundred thirty-eight million, six hundred seventy-eight thousand, four hundred six".