67412412 has 60 divisors (see below), whose sum is σ = 186611040. Its totient is φ = 21147264.

The previous prime is 67412407. The next prime is 67412413. The reversal of 67412412 is 21421476.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67412413) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 612 + ... + 11627.

It is an arithmetic number, because the mean of its divisors is an integer number (3110184).

Almost surely, 2^67412412 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67412412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93305520).

67412412 is an abundant number, since it is smaller than the sum of its proper divisors (119198628).

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

67412412 is a wasteful number, since it uses less digits than its factorization.

67412412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12272 (or 12261 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 67412412 is about 8210.5061963316. The cubic root of 67412412 is about 406.9864548453.

Adding to 67412412 its reverse (21421476), we get a palindrome (88833888).

The spelling of 67412412 in words is "sixty-seven million, four hundred twelve thousand, four hundred twelve".