231279246 has 64 divisors (see below), whose sum is σ = 562775040. Its totient is φ = 69822720.

The previous prime is 231279197. The next prime is 231279353. The reversal of 231279246 is 642972132.

It is a self number, because there is not a number n which added to its sum of digits gives 231279246.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 209131 + ... + 210233.

It is an arithmetic number, because the mean of its divisors is an integer number (8793360).

Almost surely, 2^231279246 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231279246, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (281387520).

231279246 is an abundant number, since it is smaller than the sum of its proper divisors (331495794).

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

231279246 is a wasteful number, since it uses less digits than its factorization.

231279246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1478 (or 1472 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 231279246 is about 15207.8678979007. The cubic root of 231279246 is about 613.8263876231.

The spelling of 231279246 in words is "two hundred thirty-one million, two hundred seventy-nine thousand, two hundred forty-six".