313232646 has 32 divisors (see below), whose sum is σ = 634233600. Its totient is φ = 103122720.

The previous prime is 313232641. The next prime is 313232657. The reversal of 313232646 is 646232313.

It is a super-2 number, since 2×313232646² = 196229381040322632, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313232641) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 286561 + ... + 287651.

It is an arithmetic number, because the mean of its divisors is an integer number (19819800).

Almost surely, 2^313232646 is an apocalyptic number.

313232646 is an abundant number, since it is smaller than the sum of its proper divisors (321000954).

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

313232646 is a wasteful number, since it uses less digits than its factorization.

313232646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1644.

The product of its digits is 15552, while the sum is 30.

The square root of 313232646 is about 17698.3797563506. The cubic root of 313232646 is about 679.1343121693.

Adding to 313232646 its reverse (646232313), we get a palindrome (959464959).

It can be divided in two parts, 3132 and 32646, that added together give a triangular number (35778 = T₂₆₇).

The spelling of 313232646 in words is "three hundred thirteen million, two hundred thirty-two thousand, six hundred forty-six".