313440246 has 128 divisors (see below), whose sum is σ = 831452160. Its totient is φ = 85660416.

The previous prime is 313440217. The next prime is 313440247. The reversal of 313440246 is 642044313.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313440247) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 1020825 + ... + 1021131.

It is an arithmetic number, because the mean of its divisors is an integer number (6495720).

Almost surely, 2^313440246 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 313440246, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (415726080).

313440246 is an abundant number, since it is smaller than the sum of its proper divisors (518011914).

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

313440246 is a wasteful number, since it uses less digits than its factorization.

313440246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435 (or 429 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 313440246 is about 17704.2437285528. The cubic root of 313440246 is about 679.2843147835.

Adding to 313440246 its reverse (642044313), we get a palindrome (955484559).

The spelling of 313440246 in words is "three hundred thirteen million, four hundred forty thousand, two hundred forty-six".