31368366 has 48 divisors (see below), whose sum is σ = 75108384. Its totient is φ = 9411072.

The previous prime is 31368313. The next prime is 31368367. The reversal of 31368366 is 66386313.

It is a self number, because there is not a number n which added to its sum of digits gives 31368366.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31368367) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4810 + ... + 9266.

It is an arithmetic number, because the mean of its divisors is an integer number (1564758).

Almost surely, 2^31368366 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31368366, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37554192).

31368366 is an abundant number, since it is smaller than the sum of its proper divisors (43740018).

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

31368366 is a wasteful number, since it uses less digits than its factorization.

31368366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4505 (or 4502 counting only the distinct ones).

The product of its digits is 46656, while the sum is 36.

The square root of 31368366 is about 5600.7469144749. The cubic root of 31368366 is about 315.3774462624.

The spelling of 31368366 in words is "thirty-one million, three hundred sixty-eight thousand, three hundred sixty-six".