4045918 has 8 divisors (see below), whose sum is σ = 6142248. Its totient is φ = 1998504.

The previous prime is 4045891. The next prime is 4045927. The reversal of 4045918 is 8195404.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 4045918.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12021 + ... + 12352.

It is an arithmetic number, because the mean of its divisors is an integer number (767781).

Almost surely, 2^4045918 is an apocalyptic number.

4045918 is a deficient number, since it is larger than the sum of its proper divisors (2096330).

4045918 is a wasteful number, since it uses less digits than its factorization.

4045918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24458.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 4045918 is about 2011.4467430186. The cubic root of 4045918 is about 159.3452146312.

The spelling of 4045918 in words is "four million, forty-five thousand, nine hundred eighteen".