40242918 has 8 divisors (see below), whose sum is σ = 80485848. Its totient is φ = 13414304.

The previous prime is 40242913. The next prime is 40242919. The reversal of 40242918 is 81924204.

40242918 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.

40242918 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40242913) 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, 3353571 + ... + 3353582.

It is an arithmetic number, because the mean of its divisors is an integer number (10060731).

Almost surely, 2^40242918 is an apocalyptic number.

40242918 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.

40242918 is a wasteful number, since it uses less digits than its factorization.

40242918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6707158.

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 40242918 is about 6343.7306058817. The cubic root of 40242918 is about 342.6860991586.

The spelling of 40242918 in words is "forty million, two hundred forty-two thousand, nine hundred eighteen".