67668402 has 8 divisors (see below), whose sum is σ = 135336816. Its totient is φ = 22556132.

The previous prime is 67668401. The next prime is 67668407. The reversal of 67668402 is 20486676.

It is a sphenic number, since it is the product of 3 distinct primes.

67668402 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (67668401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5639028 + ... + 5639039.

It is an arithmetic number, because the mean of its divisors is an integer number (16917102).

Almost surely, 2^67668402 is an apocalyptic number.

67668402 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

67668402 is a wasteful number, since it uses less digits than its factorization.

67668402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11278072.

The product of its (nonzero) digits is 96768, while the sum is 39.

The square root of 67668402 is about 8226.0805977087. The cubic root of 67668402 is about 407.5009637776.

The spelling of 67668402 in words is "sixty-seven million, six hundred sixty-eight thousand, four hundred two".