67408742 has 8 divisors (see below), whose sum is σ = 101208096. Its totient is φ = 33672712.

The previous prime is 67408729. The next prime is 67408753. The reversal of 67408742 is 24780476.

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

It is a junction number, because it is equal to n+sod(n) for n = 67408696 and 67408705.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13073 + ... + 17484.

It is an arithmetic number, because the mean of its divisors is an integer number (12651012).

Almost surely, 2^67408742 is an apocalyptic number.

67408742 is a deficient number, since it is larger than the sum of its proper divisors (33799354).

67408742 is a wasteful number, since it uses less digits than its factorization.

67408742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31662.

The product of its (nonzero) digits is 75264, while the sum is 38.

The square root of 67408742 is about 8210.2826991523. The cubic root of 67408742 is about 406.9790691263.

The spelling of 67408742 in words is "sixty-seven million, four hundred eight thousand, seven hundred forty-two".