40100442 has 8 divisors (see below), whose sum is σ = 80200896. Its totient is φ = 13366812.

The previous prime is 40100441. The next prime is 40100491. The reversal of 40100442 is 24400104.

40100442 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.

40100442 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (40100441) 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, 3341698 + ... + 3341709.

It is an arithmetic number, because the mean of its divisors is an integer number (10025112).

Almost surely, 2^40100442 is an apocalyptic number.

40100442 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.

40100442 is a wasteful number, since it uses less digits than its factorization.

40100442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6683412.

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 40100442 is about 6332.4909790698. The cubic root of 40100442 is about 342.2812057417.

Adding to 40100442 its reverse (24400104), we get a palindrome (64500546).

The spelling of 40100442 in words is "forty million, one hundred thousand, four hundred forty-two".