67140636 has 24 divisors (see below), whose sum is σ = 156833040. Its totient is φ = 22355712.

The previous prime is 67140613. The next prime is 67140641. The reversal of 67140636 is 63604176.

It is a junction number, because it is equal to n+sod(n) for n = 67140597 and 67140606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10900 + ... + 15908.

It is an arithmetic number, because the mean of its divisors is an integer number (6534710).

Almost surely, 2^67140636 is an apocalyptic number.

It is an amenable number.

67140636 is an abundant number, since it is smaller than the sum of its proper divisors (89692404).

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

67140636 is a wasteful number, since it uses less digits than its factorization.

67140636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6133 (or 6131 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 33.

The square root of 67140636 is about 8193.9389795141. The cubic root of 67140636 is about 406.4387904854.

It can be divided in two parts, 67140 and 636, that added together give a palindrome (67776).

The spelling of 67140636 in words is "sixty-seven million, one hundred forty thousand, six hundred thirty-six".