67671040 has 44 divisors (see below), whose sum is σ = 162343476. Its totient is φ = 27066368.

The previous prime is 67671031. The next prime is 67671151. The reversal of 67671040 is 4017676.

It can be written as a sum of positive squares in 2 ways, for example, as 25887744 + 41783296 = 5088^2 + 6464^2 .

It is a junction number, because it is equal to n+sod(n) for n = 67670993 and 67671011.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1489 + ... + 11728.

Almost surely, 2^67671040 is an apocalyptic number.

It is an amenable number.

67671040 is an abundant number, since it is smaller than the sum of its proper divisors (94672436).

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

67671040 is a wasteful number, since it uses less digits than its factorization.

67671040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13242 (or 13224 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 67671040 is about 8226.2409398218. The cubic root of 67671040 is about 407.5062590781.

The spelling of 67671040 in words is "sixty-seven million, six hundred seventy-one thousand, forty".