12401316 has 24 divisors (see below), whose sum is σ = 32151840. Its totient is φ = 4133736.

The previous prime is 12401309. The next prime is 12401317. The reversal of 12401316 is 61310421.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (12401317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57306 + ... + 57521.

It is an arithmetic number, because the mean of its divisors is an integer number (1339660).

Almost surely, 2^12401316 is an apocalyptic number.

It is an amenable number.

12401316 is an abundant number, since it is smaller than the sum of its proper divisors (19750524).

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

12401316 is a wasteful number, since it uses less digits than its factorization.

12401316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114840 (or 114832 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 12401316 is about 3521.5502268177. The cubic root of 12401316 is about 231.4670933328.

Adding to 12401316 its reverse (61310421), we get a palindrome (73711737).

It can be divided in two parts, 1240 and 1316, that added together give a triangular number (2556 = T₇₁).

The spelling of 12401316 in words is "twelve million, four hundred one thousand, three hundred sixteen".