40055042 has 8 divisors (see below), whose sum is σ = 60177936. Its totient is φ = 19995732.

The previous prime is 40055017. The next prime is 40055047. The reversal of 40055042 is 24055004.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (40055047) 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, 14288 + ... + 16859.

It is an arithmetic number, because the mean of its divisors is an integer number (7522242).

Almost surely, 2^40055042 is an apocalyptic number.

40055042 is a deficient number, since it is larger than the sum of its proper divisors (20122894).

40055042 is a wasteful number, since it uses less digits than its factorization.

40055042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31792.

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 40055042 is about 6328.9052765861. The cubic root of 40055042 is about 342.1519849312.

The spelling of 40055042 in words is "forty million, fifty-five thousand, forty-two".