67421268 has 24 divisors (see below), whose sum is σ = 174796160. Its totient is φ = 22473720.

The previous prime is 67421243. The next prime is 67421273. The reversal of 67421268 is 86212476.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 312028 + ... + 312243.

Almost surely, 2^67421268 is an apocalyptic number.

It is an amenable number.

67421268 is an abundant number, since it is smaller than the sum of its proper divisors (107374892).

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

67421268 is a wasteful number, since it uses less digits than its factorization.

67421268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 624284 (or 624276 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 67421268 is about 8211.0454876343. The cubic root of 67421268 is about 407.0042760650.

The spelling of 67421268 in words is "sixty-seven million, four hundred twenty-one thousand, two hundred sixty-eight".