67406442 has 8 divisors (see below), whose sum is σ = 134812896. Its totient is φ = 22468812.

The previous prime is 67406441. The next prime is 67406447. The reversal of 67406442 is 24460476.

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

67406442 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (67406441) 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, 5617198 + ... + 5617209.

It is an arithmetic number, because the mean of its divisors is an integer number (16851612).

Almost surely, 2^67406442 is an apocalyptic number.

67406442 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.

67406442 is a wasteful number, since it uses less digits than its factorization.

67406442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11234412.

The product of its (nonzero) digits is 32256, while the sum is 33.

The square root of 67406442 is about 8210.1426296990. The cubic root of 67406442 is about 406.9744403374.

The spelling of 67406442 in words is "sixty-seven million, four hundred six thousand, four hundred forty-two".