238878630 has 96 divisors (see below), whose sum is σ = 637505856. Its totient is φ = 62042112.

The previous prime is 238878599. The next prime is 238878643. The reversal of 238878630 is 36878832.

238878630 is a `hidden beast` number, since 2 + 3 + 8 + 8 + 7 + 8 + 630 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 676534 + ... + 676886.

It is an arithmetic number, because the mean of its divisors is an integer number (6640686).

Almost surely, 2^238878630 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 238878630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (318752928).

238878630 is an abundant number, since it is smaller than the sum of its proper divisors (398627226).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

238878630 is a wasteful number, since it uses less digits than its factorization.

238878630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542 (or 539 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The square root of 238878630 is about 15455.6989489314. The cubic root of 238878630 is about 620.4771128055.

It can be divided in two parts, 2388 and 78630, that added together give a palindrome (81018).

The spelling of 238878630 in words is "two hundred thirty-eight million, eight hundred seventy-eight thousand, six hundred thirty".