318419172 has 72 divisors (see below), whose sum is σ = 826041216. Its totient is φ = 103374144.

The previous prime is 318419141. The next prime is 318419173. The reversal of 318419172 is 271914813.

It is a happy number.

318419172 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (318419173) 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, 519138 + ... + 519750.

Almost surely, 2^318419172 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 318419172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (413020608).

318419172 is an abundant number, since it is smaller than the sum of its proper divisors (507622044).

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

318419172 is a wasteful number, since it uses less digits than its factorization.

318419172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 977 (or 972 counting only the distinct ones).

The product of its digits is 12096, while the sum is 36.

The square root of 318419172 is about 17844.3036288895. The cubic root of 318419172 is about 682.8621947438.

The spelling of 318419172 in words is "three hundred eighteen million, four hundred nineteen thousand, one hundred seventy-two".