316422240 has 96 divisors (see below), whose sum is σ = 1011709440. Its totient is φ = 83111424.

The previous prime is 316422233. The next prime is 316422263. The reversal of 316422240 is 42224613.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 316422240.

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, 27241 + ... + 37079.

It is an arithmetic number, because the mean of its divisors is an integer number (10538640).

Almost surely, 2^316422240 is an apocalyptic number.

316422240 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 316422240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (505854720).

316422240 is an abundant number, since it is smaller than the sum of its proper divisors (695287200).

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

316422240 is a wasteful number, since it uses less digits than its factorization.

316422240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9924 (or 9916 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 316422240 is about 17788.2612978335. The cubic root of 316422240 is about 681.4317009368.

Adding to 316422240 its reverse (42224613), we get a palindrome (358646853).

The spelling of 316422240 in words is "three hundred sixteen million, four hundred twenty-two thousand, two hundred forty".