238378646 has 16 divisors (see below), whose sum is σ = 391523328. Its totient is φ = 107951400.

The previous prime is 238378631. The next prime is 238378669. The reversal of 238378646 is 646873832.

It is a self number, because there is not a number n which added to its sum of digits gives 238378646.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14030 + ... + 25953.

It is an arithmetic number, because the mean of its divisors is an integer number (24470208).

Almost surely, 2^238378646 is an apocalyptic number.

238378646 is a deficient number, since it is larger than the sum of its proper divisors (153144682).

238378646 is a wasteful number, since it uses less digits than its factorization.

238378646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40267.

The product of its digits is 1161216, while the sum is 47.

The square root of 238378646 is about 15439.5157307475. The cubic root of 238378646 is about 620.0439146834.

It can be divided in two parts, 2383786 and 46, that added together give a palindrome (2383832).

The spelling of 238378646 in words is "two hundred thirty-eight million, three hundred seventy-eight thousand, six hundred forty-six".