231442104 has 64 divisors (see below), whose sum is σ = 597104640. Its totient is φ = 74701440.

The previous prime is 231442093. The next prime is 231442109. The reversal of 231442104 is 401244132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231442109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 233049 + ... + 234039.

It is an arithmetic number, because the mean of its divisors is an integer number (9329760).

Almost surely, 2^231442104 is an apocalyptic number.

231442104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231442104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (298552320).

231442104 is an abundant number, since it is smaller than the sum of its proper divisors (365662536).

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

231442104 is a wasteful number, since it uses less digits than its factorization.

231442104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1300 (or 1296 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 231442104 is about 15213.2213551240. The cubic root of 231442104 is about 613.9704315073.

Adding to 231442104 its reverse (401244132), we get a palindrome (632686236).

The spelling of 231442104 in words is "two hundred thirty-one million, four hundred forty-two thousand, one hundred four".