238219878 has 128 divisors (see below), whose sum is σ = 580027392. Its totient is φ = 64475136.

The previous prime is 238219873. The next prime is 238219879. The reversal of 238219878 is 878912832.

238219878 is a nontrivial binomial coefficient, being equal to C(21828, 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238219873) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2226301 + ... + 2226407.

It is an arithmetic number, because the mean of its divisors is an integer number (4531464).

Almost surely, 2^238219878 is an apocalyptic number.

238219878 is the 21827-th triangular number and also the 10914-th hexagonal number.

It is a practical number, because each smaller number is the sum of distinct divisors of 238219878, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (290013696).

238219878 is an abundant number, since it is smaller than the sum of its proper divisors (341807514).

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

238219878 is a wasteful number, since it uses less digits than its factorization.

238219878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238.

The product of its digits is 387072, while the sum is 48.

The square root of 238219878 is about 15434.3732623000. The cubic root of 238219878 is about 619.9062275801.

It can be divided in two parts, 238 and 219878, that added together give a triangular number (220116 = T₆₆₃).

The spelling of 238219878 in words is "two hundred thirty-eight million, two hundred nineteen thousand, eight hundred seventy-eight".