31314456 has 24 divisors (see below), whose sum is σ = 84810180. Its totient is φ = 10438128.

The previous prime is 31314407. The next prime is 31314457. The reversal of 31314456 is 65441313.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31314457) 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 5 ways as a sum of consecutive naturals, for example, 217390 + ... + 217533.

Almost surely, 2^31314456 is an apocalyptic number.

31314456 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

31314456 is an abundant number, since it is smaller than the sum of its proper divisors (53495724).

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

31314456 is a wasteful number, since it uses less digits than its factorization.

31314456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434935 (or 434928 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 31314456 is about 5595.9320939411. The cubic root of 31314456 is about 315.1966723433.

Adding to 31314456 its reverse (65441313), we get a palindrome (96755769).

The spelling of 31314456 in words is "thirty-one million, three hundred fourteen thousand, four hundred fifty-six".