42641418 has 8 divisors (see below), whose sum is σ = 85282848. Its totient is φ = 14213804.

The previous prime is 42641383. The next prime is 42641419. The reversal of 42641418 is 81414624.

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

42641418 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (42641419) 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, 3553446 + ... + 3553457.

It is an arithmetic number, because the mean of its divisors is an integer number (10660356).

Almost surely, 2^42641418 is an apocalyptic number.

42641418 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.

42641418 is a wasteful number, since it uses less digits than its factorization.

42641418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7106908.

The product of its digits is 6144, while the sum is 30.

The square root of 42641418 is about 6530.0396629730. The cubic root of 42641418 is about 349.3632449751.

The spelling of 42641418 in words is "forty-two million, six hundred forty-one thousand, four hundred eighteen".