42651678 has 8 divisors (see below), whose sum is σ = 85303368. Its totient is φ = 14217224.

The previous prime is 42651673. The next prime is 42651703. The reversal of 42651678 is 87615624.

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

42651678 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42651673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3554301 + ... + 3554312.

It is an arithmetic number, because the mean of its divisors is an integer number (10662921).

Almost surely, 2^42651678 is an apocalyptic number.

42651678 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.

42651678 is a wasteful number, since it uses less digits than its factorization.

42651678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7108618.

The product of its digits is 80640, while the sum is 39.

The square root of 42651678 is about 6530.8252158514. The cubic root of 42651678 is about 349.3912629571.

The spelling of 42651678 in words is "forty-two million, six hundred fifty-one thousand, six hundred seventy-eight".