31480368 has 40 divisors (see below), whose sum is σ = 82249200. Its totient is φ = 10374144.

The previous prime is 31480367. The next prime is 31480369. The reversal of 31480368 is 86308413.

It is an interprime number because it is at equal distance from previous prime (31480367) and next prime (31480369).

It is not an unprimeable number, because it can be changed into a prime (31480367) 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, 588 + ... + 7956.

It is an arithmetic number, because the mean of its divisors is an integer number (2056230).

Almost surely, 2^31480368 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 31480368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41124600).

31480368 is an abundant number, since it is smaller than the sum of its proper divisors (50768832).

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

31480368 is a wasteful number, since it uses less digits than its factorization.

31480368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7469 (or 7463 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 31480368 is about 5610.7368500046. The cubic root of 31480368 is about 315.7523563158.

The spelling of 31480368 in words is "thirty-one million, four hundred eighty thousand, three hundred sixty-eight".