67640112 has 30 divisors (see below), whose sum is σ = 189298772. Its totient is φ = 22546656.

The previous prime is 67640101. The next prime is 67640117. The reversal of 67640112 is 21104676.

67640112 is a `hidden beast` number, since 6 + 7 + 640 + 1 + 12 = 666.

It is not an unprimeable number, because it can be changed into a prime (67640117) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 234718 + ... + 235005.

Almost surely, 2^67640112 is an apocalyptic number.

It is an amenable number.

67640112 is an abundant number, since it is smaller than the sum of its proper divisors (121658660).

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

67640112 is a wasteful number, since it uses less digits than its factorization.

67640112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469737 (or 469728 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 67640112 is about 8224.3608870234. The cubic root of 67640112 is about 407.4441681446. Note that the first 3 decimals are identical.

Adding to 67640112 its reverse (21104676), we get a palindrome (88744788).

The spelling of 67640112 in words is "sixty-seven million, six hundred forty thousand, one hundred twelve".