31449612 has 24 divisors (see below), whose sum is σ = 73854256. Its totient is φ = 10415808.

The previous prime is 31449611. The next prime is 31449619. The reversal of 31449612 is 21694413.

It is a self number, because there is not a number n which added to its sum of digits gives 31449612.

It is not an unprimeable number, because it can be changed into a prime (31449611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6463 + ... + 10230.

Almost surely, 2^31449612 is an apocalyptic number.

It is an amenable number.

31449612 is an abundant number, since it is smaller than the sum of its proper divisors (42404644).

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

31449612 is a wasteful number, since it uses less digits than its factorization.

31449612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16857 (or 16855 counting only the distinct ones).

The product of its digits is 5184, while the sum is 30.

The square root of 31449612 is about 5607.9953637641. The cubic root of 31449612 is about 315.6494938610.

The spelling of 31449612 in words is "thirty-one million, four hundred forty-nine thousand, six hundred twelve".