42354678 has 8 divisors (see below), whose sum is σ = 84709368. Its totient is φ = 14118224.

The previous prime is 42354671. The next prime is 42354721. The reversal of 42354678 is 87645324.

It is a happy number.

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

42354678 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42354671) 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, 3529551 + ... + 3529562.

It is an arithmetic number, because the mean of its divisors is an integer number (10588671).

Almost surely, 2^42354678 is an apocalyptic number.

42354678 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.

42354678 is a wasteful number, since it uses less digits than its factorization.

42354678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7059118.

The product of its digits is 161280, while the sum is 39.

The square root of 42354678 is about 6508.0471725395. The cubic root of 42354678 is about 348.5783914383.

The spelling of 42354678 in words is "forty-two million, three hundred fifty-four thousand, six hundred seventy-eight".