31344016 has 20 divisors (see below), whose sum is σ = 66250224. Its totient is φ = 14247200.

The previous prime is 31344011. The next prime is 31344029. The reversal of 31344016 is 61044313.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (31344011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88870 + ... + 89221.

Almost surely, 2^31344016 is an apocalyptic number.

It is an amenable number.

31344016 is an abundant number, since it is smaller than the sum of its proper divisors (34906208).

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

31344016 is a wasteful number, since it uses less digits than its factorization.

31344016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178110 (or 178104 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 31344016 is about 5598.5726752450. The cubic root of 31344016 is about 315.2958201984.

Adding to 31344016 its reverse (61044313), we get a palindrome (92388329).

The spelling of 31344016 in words is "thirty-one million, three hundred forty-four thousand, sixteen".