40044558 has 8 divisors (see below), whose sum is σ = 80089128. Its totient is φ = 13348184.

The previous prime is 40044551. The next prime is 40044559. The reversal of 40044558 is 85544004.

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

40044558 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40044551) 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, 3337041 + ... + 3337052.

It is an arithmetic number, because the mean of its divisors is an integer number (10011141).

Almost surely, 2^40044558 is an apocalyptic number.

40044558 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.

40044558 is a wasteful number, since it uses less digits than its factorization.

40044558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6674098.

The product of its (nonzero) digits is 12800, while the sum is 30.

The square root of 40044558 is about 6328.0769590769. The cubic root of 40044558 is about 342.1221307253.

The spelling of 40044558 in words is "forty million, forty-four thousand, five hundred fifty-eight".