31412316 has 48 divisors (see below), whose sum is σ = 80251808. Its totient is φ = 9504000.

The previous prime is 31412299. The next prime is 31412321. The reversal of 31412316 is 61321413.

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 = 31412292 and 31412301.

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, 7866 + ... + 11166.

Almost surely, 2^31412316 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31412316, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40125904).

31412316 is an abundant number, since it is smaller than the sum of its proper divisors (48839492).

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

31412316 is a wasteful number, since it uses less digits than its factorization.

31412316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3382 (or 3380 counting only the distinct ones).

The product of its digits is 432, while the sum is 21.

The square root of 31412316 is about 5604.6691249350. The cubic root of 31412316 is about 315.5246685771.

Adding to 31412316 its reverse (61321413), we get a palindrome (92733729).

The spelling of 31412316 in words is "thirty-one million, four hundred twelve thousand, three hundred sixteen".