4045907 has 4 divisors (see below), whose sum is σ = 4221840. Its totient is φ = 3869976.

The previous prime is 4045891. The next prime is 4045927. The reversal of 4045907 is 7095404.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4045907 - 2⁴ = 4045891 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4045907.

It is not an unprimeable number, because it can be changed into a prime (4045927) 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, 87932 + ... + 87977.

It is an arithmetic number, because the mean of its divisors is an integer number (1055460).

Almost surely, 2^4045907 is an apocalyptic number.

4045907 is a deficient number, since it is larger than the sum of its proper divisors (175933).

4045907 is a wasteful number, since it uses less digits than its factorization.

4045907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175932.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 4045907 is about 2011.4440086664. Note that the first 3 decimals coincide. The cubic root of 4045907 is about 159.3450702223.

The spelling of 4045907 in words is "four million, forty-five thousand, nine hundred seven".