31344132 has 24 divisors (see below), whose sum is σ = 73545472. Its totient is φ = 10389600.

The previous prime is 31344121. The next prime is 31344139. The reversal of 31344132 is 23144313.

It is a super-2 number, since 2×31344132² = 1964909221666848, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 31344099 and 31344108.

It is not an unprimeable number, because it can be changed into a prime (31344139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5044 + ... + 9387.

Almost surely, 2^31344132 is an apocalyptic number.

It is an amenable number.

31344132 is an abundant number, since it is smaller than the sum of its proper divisors (42201340).

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

31344132 is a wasteful number, since it uses less digits than its factorization.

31344132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14619 (or 14617 counting only the distinct ones).

The product of its digits is 864, while the sum is 21.

The square root of 31344132 is about 5598.5830350188. The cubic root of 31344132 is about 315.2962091537.

Adding to 31344132 its reverse (23144313), we get a palindrome (54488445).

The spelling of 31344132 in words is "thirty-one million, three hundred forty-four thousand, one hundred thirty-two".