238399989142 has 16 divisors (see below), whose sum is σ = 418190015232. Its totient is φ = 99795344040.

The previous prime is 238399989133. The next prime is 238399989151. The reversal of 238399989142 is 241989993832.

It is an interprime number because it is at equal distance from previous prime (238399989133) and next prime (238399989151).

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, 198006034 + ... + 198007237.

It is an arithmetic number, because the mean of its divisors is an integer number (26136875952).

Almost surely, 2^238399989142 is an apocalyptic number.

238399989142 is a deficient number, since it is larger than the sum of its proper divisors (179790026090).

238399989142 is a wasteful number, since it uses less digits than its factorization.

238399989142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396013323.

The product of its digits is 60466176, while the sum is 67.

The spelling of 238399989142 in words is "two hundred thirty-eight billion, three hundred ninety-nine million, nine hundred eighty-nine thousand, one hundred forty-two".