316122240 has 256 divisors, whose sum is σ = 1180523520. Its totient is φ = 70447104.

The previous prime is 316122239. The next prime is 316122269. The reversal of 316122240 is 42221613.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 577647 + ... + 578193.

It is an arithmetic number, because the mean of its divisors is an integer number (4611420).

Almost surely, 2^316122240 is an apocalyptic number.

316122240 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 316122240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (590261760).

316122240 is an abundant number, since it is smaller than the sum of its proper divisors (864401280).

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

316122240 is a wasteful number, since it uses less digits than its factorization.

316122240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 619 (or 607 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 316122240 is about 17779.8267708097. The cubic root of 316122240 is about 681.2162776563.

Adding to 316122240 its reverse (42221613), we get a palindrome (358343853).

The spelling of 316122240 in words is "three hundred sixteen million, one hundred twenty-two thousand, two hundred forty".