31244214 has 32 divisors (see below), whose sum is σ = 64665216. Its totient is φ = 10057280.

The previous prime is 31244209. The next prime is 31244221. The reversal of 31244214 is 41244213.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25729 + ... + 26915.

It is an arithmetic number, because the mean of its divisors is an integer number (2020788).

Almost surely, 2^31244214 is an apocalyptic number.

31244214 is an abundant number, since it is smaller than the sum of its proper divisors (33421002).

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

31244214 is a wasteful number, since it uses less digits than its factorization.

31244214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1340.

The product of its digits is 768, while the sum is 21.

The square root of 31244214 is about 5589.6524042198. The cubic root of 31244214 is about 314.9608215320.

Adding to 31244214 its reverse (41244213), we get a palindrome (72488427).

Subtracting 31244214 from its reverse (41244213), we obtain a palindrome (9999999).

The spelling of 31244214 in words is "thirty-one million, two hundred forty-four thousand, two hundred fourteen".