46638642 has 8 divisors (see below), whose sum is σ = 93277296. Its totient is φ = 15546212.

The previous prime is 46638623. The next prime is 46638649. The reversal of 46638642 is 24683664.

46638642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

46638642 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 46638642.

It is not an unprimeable number, because it can be changed into a prime (46638649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3886548 + ... + 3886559.

It is an arithmetic number, because the mean of its divisors is an integer number (11659662).

Almost surely, 2^46638642 is an apocalyptic number.

46638642 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.

46638642 is a wasteful number, since it uses less digits than its factorization.

46638642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7773112.

The product of its digits is 165888, while the sum is 39.

The square root of 46638642 is about 6829.2490070285. The cubic root of 46638642 is about 359.9553494005.

The spelling of 46638642 in words is "forty-six million, six hundred thirty-eight thousand, six hundred forty-two".