67318340 has 12 divisors (see below), whose sum is σ = 141368556. Its totient is φ = 26927328.

The previous prime is 67318333. The next prime is 67318357. The reversal of 67318340 is 4381376.

It can be written as a sum of positive squares in 2 ways, for example, as 34668544 + 32649796 = 5888^2 + 5714^2 .

It is a junction number, because it is equal to n+sod(n) for n = 67318297 and 67318306.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1682939 + ... + 1682978.

It is an arithmetic number, because the mean of its divisors is an integer number (11780713).

Almost surely, 2^67318340 is an apocalyptic number.

It is an amenable number.

67318340 is an abundant number, since it is smaller than the sum of its proper divisors (74050216).

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

67318340 is a wasteful number, since it uses less digits than its factorization.

67318340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3365926 (or 3365924 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 67318340 is about 8204.7754387308. The cubic root of 67318340 is about 406.7970542514.

The spelling of 67318340 in words is "sixty-seven million, three hundred eighteen thousand, three hundred forty".