67140412 has 24 divisors (see below), whose sum is σ = 125332704. Its totient is φ = 31360512.

The previous prime is 67140397. The next prime is 67140439. The reversal of 67140412 is 21404176.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5713 + ... + 12919.

It is an arithmetic number, because the mean of its divisors is an integer number (5222196).

Almost surely, 2^67140412 is an apocalyptic number.

It is an amenable number.

67140412 is a deficient number, since it is larger than the sum of its proper divisors (58192292).

67140412 is a wasteful number, since it uses less digits than its factorization.

67140412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7365 (or 7363 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 67140412 is about 8193.9253108629. The cubic root of 67140412 is about 406.4383384869.

Adding to 67140412 its reverse (21404176), we get a palindrome (88544588).

The spelling of 67140412 in words is "sixty-seven million, one hundred forty thousand, four hundred twelve".