318780672 has 216 divisors, whose sum is σ = 1015017696. Its totient is φ = 88510464.

The previous prime is 318780643. The next prime is 318780677. The reversal of 318780672 is 276087813.

It is a super-2 number, since 2×318780672² = 203242233681543168, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (318780677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1618078 + ... + 1618274.

It is an arithmetic number, because the mean of its divisors is an integer number (4699156).

Almost surely, 2^318780672 is an apocalyptic number.

318780672 is a gapful number since it is divisible by the number (32) 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 318780672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (507508848).

318780672 is an abundant number, since it is smaller than the sum of its proper divisors (696237024).

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

318780672 is a wasteful number, since it uses less digits than its factorization.

318780672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273 (or 252 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 42.

The square root of 318780672 is about 17854.4300385087. The cubic root of 318780672 is about 683.1205139095.

The spelling of 318780672 in words is "three hundred eighteen million, seven hundred eighty thousand, six hundred seventy-two".